Номер 8.8, страница 46 - гдз по геометрии 7 класс учебник Смирнов, Туяков

Геометрия, 7 класс Учебник, авторы: Смирнов Владимир Алексеевич, Туяков Есенкельды Алыбаевич, издательство Мектеп, Алматы, 2017

Авторы: Смирнов В. А., Туяков Е. А.

Тип: Учебник

Издательство: Мектеп

Год издания: 2017 - 2026

ISBN: 978-601-07-0873-0

Утверждено Министерством образования и науки Республики Казахстан

Глава 2. Треугольники. Параграф 8. Первый признак равенства треугольников - номер 8.8, страница 46.

App\Models\Task {#1030 // resources/views/models/task/default.blade.php
  #connection: "mysql"
  #table: "tasks"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #with: []
  #withCount: []
  +preventsLazyLoading: false
  #perPage: 15
  +exists: true
  +wasRecentlyCreated: false
  #escapeWhenCastingToString: false
  #attributes: array:24 [
    "id" => 1129562
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "46"
    "field_page_end" => null
    "field_url" => "/7-klass/geometrija/smirnova-uchebnik/08-8"
    "field_display_title" => "8.8"
    "field_outside_task" => null
    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1037
      #items: array:1 [
        0 => App\Models\Term {#1036
          #connection: "mysql"
          #table: "terms"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
          #with: []
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          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 26
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "name" => "номер"
            "field_cases" => array:6 [
              "field_accusative_case" => "номер"
              "field_creative_case" => "номером"
              "field_dative_case" => "номеру"
              "field_genitive_case" => "номера"
              "field_nominative_case" => "номер"
              "field_prepositional_case" => "номере"
            ]
            "field_short_name" => ""
          ]
          #original: array:6 [
            "id" => 26
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "name" => "номер"
            "field_cases" => array:6 [
              "field_accusative_case" => "номер"
              "field_creative_case" => "номером"
              "field_dative_case" => "номеру"
              "field_genitive_case" => "номера"
              "field_nominative_case" => "номер"
              "field_prepositional_case" => "номере"
            ]
            "field_short_name" => ""
          ]
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      #escapeWhenCastingToString: false
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        0 => App\Models\Branch {#1034
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #attributes: array:24 [
            "id" => 1129366
            "created_at" => "2026-04-10 13:58:26"
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            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1039
              #items: array:1 [
                0 => App\Models\Term {#1038
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                      "field_genitive_case" => "Главы"
                      "field_nominative_case" => "Глава"
                      "field_prepositional_case" => "Главе"
                    ]
                    "field_page_check_not_needed" => null
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                  ]
                  #original: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
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                    ]
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                  ]
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              #items: array:1 [
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                  #connection: "mysql"
                  #table: "books"
                  #primaryKey: "id"
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                  #attributes: array:50 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1042
                      #items: array:1 [ …1]
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                      #escapeWhenCastingToString: false
                    }
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1046
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                      #escapeWhenCastingToString: false
                    }
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1048
                      #items: array:2 [ …2]
                      #escapeWhenCastingToString: false
                    }
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1051
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1052
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1054
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1056
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1058
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1059
                      #items: []
                      #escapeWhenCastingToString: false
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                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1060
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                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1061
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1062
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                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1063
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                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
                    "field_publication_year" => "2017"
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                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для 7 класса общеобразовательной школы"
                    "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
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                    "field_tasks_count" => "528"
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                    "field_isbn" => "978-601-07-0873-0"
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                    ]
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                    "field_covers" => array:1 [
                      0 => array:4 [ …4]
                    ]
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                    }
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                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/7-klass/geometrija/smirnova-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1067
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                      #escapeWhenCastingToString: false
                    }
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                  #original: array:50 [
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                    "field_series" => Illuminate\Database\Eloquent\Collection {#1058}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1059}
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                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1061}
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    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1104
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        0 => App\Models\Branch {#1112
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              #items: array:1 [
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                            "field_foreign_lang_name" => null
                            "field_short_name" => null
                            "field_subject_type" => "technical_subject"
                            "field_translit" => "geometrija"
                          ]
                          #original: array:10 [
                            "id" => 6477
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Геометрия"
                            "field_abbreviated_name" => null
                            "field_cases" => array:6 [
                              "field_accusative_case" => "геометрию"
                              "field_creative_case" => "геометрией"
                              "field_dative_case" => "геометрии"
                              "field_genitive_case" => "геометрии"
                              "field_nominative_case" => "геометрия"
                              "field_prepositional_case" => "геометрии"
                            ]
                            "field_foreign_lang_name" => null
                            "field_short_name" => null
                            "field_subject_type" => "technical_subject"
                            "field_translit" => "geometrija"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1118
                      #items: array:1 [
                        0 => App\Models\Term {#1119
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 5456
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "7"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "седьмой"
                              "field_creative_case" => "седьмым"
                              "field_dative_case" => "седьмому"
                              "field_genitive_case" => "седьмого"
                              "field_nominative_case" => "седьмой"
                              "field_prepositional_case" => "седьмом"
                            ]
                            "field_translit" => "sedmoj"
                          ]
                          #original: array:6 [
                            "id" => 5456
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "7"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "седьмой"
                              "field_creative_case" => "седьмым"
                              "field_dative_case" => "седьмому"
                              "field_genitive_case" => "седьмого"
                              "field_nominative_case" => "седьмой"
                              "field_prepositional_case" => "седьмом"
                            ]
                            "field_translit" => "sedmoj"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1120
                      #items: array:1 [
                        0 => App\Models\Term {#1121
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 6996
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Мектеп"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "mektep"
                          ]
                          #original: array:6 [
                            "id" => 6996
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Мектеп"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "mektep"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1122
                      #items: array:2 [
                        0 => App\Models\Term {#1123
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 5801
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Смирнов"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Владимир"
                            "field_patronymic" => "Алексеевич"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 5801
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Смирнов"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Владимир"
                            "field_patronymic" => "Алексеевич"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Term {#1124
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 7017
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Туяков"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Есенкельды"
                            "field_patronymic" => "Алыбаевич"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 7017
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Туяков"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Есенкельды"
                            "field_patronymic" => "Алыбаевич"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1125
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1126
                      #items: array:1 [
                        0 => App\Models\Term {#1127
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:10 [
                            "id" => 6671
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Учебник"
                            "field_book_type_foreign" => null
                            "field_cases" => array:6 [
                              "field_accusative_case" => "учебник"
                              "field_creative_case" => "учебником"
                              "field_dative_case" => "учебнику"
                              "field_genitive_case" => "учебника"
                              "field_nominative_case" => "учебник"
                              "field_prepositional_case" => "учебнике"
                            ]
                            "field_plural_form" => null
                            "field_short_name" => null
                            "field_short_name_foreign" => null
                            "field_translit" => "uchebnik"
                          ]
                          #original: array:10 [
                            "id" => 6671
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Учебник"
                            "field_book_type_foreign" => null
                            "field_cases" => array:6 [
                              "field_accusative_case" => "учебник"
                              "field_creative_case" => "учебником"
                              "field_dative_case" => "учебнику"
                              "field_genitive_case" => "учебника"
                              "field_nominative_case" => "учебник"
                              "field_prepositional_case" => "учебнике"
                            ]
                            "field_plural_form" => null
                            "field_short_name" => null
                            "field_short_name_foreign" => null
                            "field_translit" => "uchebnik"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1128
                      #items: array:1 [
                        0 => App\Models\Term {#1129
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 6994
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Казахстан"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "kazakhstan"
                          ]
                          #original: array:6 [
                            "id" => 6994
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Казахстан"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "kazakhstan"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1130
                      #items: array:1 [
                        0 => App\Models\Term {#1131
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 6995
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматы"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "almaty"
                          ]
                          #original: array:6 [
                            "id" => 6995
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Алматы"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "almaty"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1132
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1133
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1134
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1135
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1136
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1137
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
                    "field_publication_year" => "2017"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для 7 класса общеобразовательной школы"
                    "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "528"
                    "field_priority" => "2"
                    "field_default_folder" => "/geometrija_07/Smirnova-u17/"
                    "field_isbn" => "978-601-07-0873-0"
                    "field_cover" => array:1 [
                      0 => "/media/geometrija_07/Smirnova-u17/covers/cover1.webp?ts=1753259592"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/geometrija_07/Smirnova-u17/covers/cover1.webp?ts=1753259592"
                        "alt" => ""
                        "width" => "1632"
                        "height" => "2472"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1138
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1139
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1140
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/7-klass/geometrija/smirnova-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1141
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 378
                      "subject" => 543
                      "class_subject" => 389
                    ]
                  ]
                  #original: array:50 [
                    "id" => 2907
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_tree_default_status" => "tasks"
                    "field_pages_status" => null
                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1117}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1118}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1120}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1122}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1125}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1126}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1128}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1130}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1132}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1133}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1134}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1135}
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1136}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1137}
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
                    "field_publication_year" => "2017"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для 7 класса общеобразовательной школы"
                    "field_allowed" => "Утверждено Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "528"
                    "field_priority" => "2"
                    "field_default_folder" => "/geometrija_07/Smirnova-u17/"
                    "field_isbn" => "978-601-07-0873-0"
                    "field_cover" => array:1 [
                      0 => "/media/geometrija_07/Smirnova-u17/covers/cover1.webp?ts=1753259592"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/geometrija_07/Smirnova-u17/covers/cover1.webp?ts=1753259592"
                        "alt" => ""
                        "width" => "1632"
                        "height" => "2472"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1138}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1139}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1140}
                    "field_url" => "/7-klass/geometrija/smirnova-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1141}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 378
                      "subject" => 543
                      "class_subject" => 389
                    ]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1142
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1129366
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Треугольники"
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1116}
            "field_page_start" => "39"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1144}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1142}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1143
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1129368
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Первый признак равенства треугольников"
            "field_branch_order" => "8"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1148
              #items: array:1 [
                0 => App\Models\Term {#1145
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Параграф"
                      "field_creative_case" => "Параграфом"
                      "field_dative_case" => "Параграфу"
                      "field_genitive_case" => "Параграфа"
                      "field_nominative_case" => "Параграф"
                      "field_prepositional_case" => "Параграфе"
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #original: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Параграф"
                      "field_creative_case" => "Параграфом"
                      "field_dative_case" => "Параграфу"
                      "field_genitive_case" => "Параграфа"
                      "field_nominative_case" => "Параграф"
                      "field_prepositional_case" => "Параграфе"
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "44"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1147
              #items: array:1 [
                0 => App\Models\Book {#1115}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1146
              #items: array:1 [
                0 => App\Models\Branch {#1034}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1129368
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Первый признак равенства треугольников"
            "field_branch_order" => "8"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1148}
            "field_page_start" => "44"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1147}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1146}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1101
      #items: array:3 [
        0 => App\Models\Element {#1094
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:7 [
            "id" => 1319627
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1086
              #items: array:1 [
                0 => App\Models\Edition {#1093
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 5009
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1091
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1089
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1090
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1087
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_content_source" => null
                  ]
                  #original: array:21 [
                    "id" => 5009
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1091}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1089}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1090}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1087}
                    "field_content_source" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
              "refs" => "1129562"
              "type" => "task"
            ]
            "text" => "<p><strong>8.8.</strong> На рисунке 8.7 $AB = AC, AE = AD$. Докажите, что $BD = CE$.</p><p>Рис. 8.7</p><p>Рис. 8.8</p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "8-1.jpg"
                "alt" => null
                "width" => "1784"
                "height" => 769
                "path" => "/media/geometrija_07/Smirnova-u17/0-08/8-1.webp?ts=1753982276"
              ]
            ]
          ]
          #original: array:7 [
            "id" => 1319627
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1086}
            "task" => array:2 [
              "refs" => "1129562"
              "type" => "task"
            ]
            "text" => "<p><strong>8.8.</strong> На рисунке 8.7 $AB = AC, AE = AD$. Докажите, что $BD = CE$.</p><p>Рис. 8.7</p><p>Рис. 8.8</p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "8-1.jpg"
                "alt" => null
                "width" => "1784"
                "height" => 769
                "path" => "/media/geometrija_07/Smirnova-u17/0-08/8-1.webp?ts=1753982276"
              ]
            ]
          ]
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
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          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Element {#1088
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1320128
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1078
              #items: array:1 [
                0 => App\Models\Edition {#1085
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 5010
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение"
                    "field_order" => "2"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1081
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_content_type" => "free"
                    "field_content_mode" => "image"
                    "field_page_content_mode" => ""
                    "field_content_text_checked" => "0"
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1083
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1082
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1079
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_content_source" => null
                  ]
                  #original: array:21 [
                    "id" => 5010
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение"
                    "field_order" => "2"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1081}
                    "field_content_type" => "free"
                    "field_content_mode" => "image"
                    "field_page_content_mode" => ""
                    "field_content_text_checked" => "0"
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1083}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1082}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1079}
                    "field_content_source" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
              "refs" => "1129562"
              "type" => "task"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "8-1.jpg"
                "alt" => null
                "width" => "1418"
                "height" => 1195
                "path" => "/media/geometrija_07/Smirnova-u17/1-08/8-1.webp?ts=1753982395"
              ]
            ]
          ]
          #original: array:6 [
            "id" => 1320128
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1078}
            "task" => array:2 [
              "refs" => "1129562"
              "type" => "task"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "8-1.jpg"
                "alt" => null
                "width" => "1418"
                "height" => 1195
                "path" => "/media/geometrija_07/Smirnova-u17/1-08/8-1.webp?ts=1753982395"
              ]
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Element {#1080
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1541417
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1107
              #items: array:1 [
                0 => App\Models\Edition {#1077
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 5631
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1076
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_content_type" => "free"
                    "field_content_mode" => "text"
                    "field_page_content_mode" => ""
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1072
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1070
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1103
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_content_source" => null
                  ]
                  #original: array:21 [
                    "id" => 5631
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1076}
                    "field_content_type" => "free"
                    "field_content_mode" => "text"
                    "field_page_content_mode" => ""
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1072}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1070}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1103}
                    "field_content_source" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
              "refs" => "1129562"
              "type" => "task"
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            "text" => "<p><strong>Рис. 8.7</strong></p><p><svg width="200" height="210" viewBox="0 0 200 210"><line x1="100" y1="10" x2="20" y2="190" stroke="red" stroke-width="1.5"></line><line x1="100" y1="10" x2="180" y2="190" stroke="red" stroke-width="1.5"></line><line x1="20" y1="190" x2="140" y2="70" stroke="red" stroke-width="1.5"></line><line x1="180" y1="190" x2="60" y2="70" stroke="red" stroke-width="1.5"></line><text x="95" y="8" font-family="sans-serif" font-size="16">A</text><text x="10" y="200" font-family="sans-serif" font-size="16">B</text><text x="182" y="200" font-family="sans-serif" font-size="16">C</text><text x="45" y="70" font-family="sans-serif" font-size="16">E</text><text x="145" y="70" font-family="sans-serif" font-size="16">D</text><path d="M 77 45 L 85 55" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 123 45 L 115 55" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 55 120 L 63 130" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 51 126 L 59 136" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 145 120 L 137 130" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 149 126 L 141 136" stroke="red" stroke-width="1.5" fill="none"></path></svg></p><p><strong>Дано:</strong><br>$AB = AC$<br>$AE = AD$</p><p><strong>Доказать:</strong><br>$BD = CE$</p><p><strong>Доказательство:</strong><br>Рассмотрим треугольники $\triangle ABD$ и $\triangle ACE$.<br>1. $AB = AC$ (по условию).<br>2. $AD = AE$ (по условию).<br>3. $\angle BAD$ (или $\angle A$) — общий угол для обоих треугольников.<br>Следовательно, $\triangle ABD \cong \triangle ACE$ по первому признаку равенства треугольников (по двум сторонам и углу между ними).<br>Так как треугольники равны, то равны и их соответствующие элементы. Сторона $BD$ в $\triangle ABD$ соответствует стороне $CE$ в $\triangle ACE$.<br>Таким образом, $BD = CE$.</p><p><strong>Ответ:</strong> Равенство $BD = CE$ доказано.</p><p><strong>Рис. 8.8</strong></p><p><svg width="200" height="200" viewBox="0 0 200 200"><line x1="20" y1="100" x2="140" y2="40" stroke="red" stroke-width="1.5"></line><line x1="20" y1="100" x2="160" y2="100" stroke="red" stroke-width="1.5"></line><line x1="20" y1="100" x2="140" y2="160" stroke="red" stroke-width="1.5"></line><line x1="140" y1="40" x2="160" y2="100" stroke="red" stroke-width="1.5"></line><line x1="140" y1="160" x2="160" y2="100" stroke="red" stroke-width="1.5"></line><text x="5" y="105" font-family="sans-serif" font-size="16">A</text><text x="165" y="105" font-family="sans-serif" font-size="16">C</text><text x="135" y="35" font-family="sans-serif" font-size="16">D</text><text x="135" y="175" font-family="sans-serif" font-size="16">B</text><path d="M 70 65 L 80 75" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 70 135 L 80 125" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 45 100 A 25 25 0 0 1 40 78" fill="none" stroke="red" stroke-width="1.5"></path><path d="M 45 100 A 25 25 0 0 0 40 122" fill="none" stroke="red" stroke-width="1.5"></path></svg></p><p>Текст задачи 8.8 относится к рисунку 8.7. Для рисунка 8.8, по-видимому, предполагается другая задача, условия которой можно определить по графическим обозначениям на нем. Исходя из этих обозначений, решим следующую задачу.</p><p><strong>Дано:</strong><br>$AD = AB$<br>$\angle DAC = \angle BAC$</p><p><strong>Доказать:</strong><br>$CD = CB$</p><p><strong>Доказательство:</strong><br>Рассмотрим треугольники $\triangle ADC$ и $\triangle ABC$.<br>1. $AD = AB$ (по условию, отмечено на рисунке).<br>2. $\angle DAC = \angle BAC$ (по условию, отмечено на рисунке).<br>3. $AC$ — общая сторона.<br>Следовательно, $\triangle ADC \cong \triangle ABC$ по первому признаку равенства треугольников (по двум сторонам и углу между ними).<br>Так как треугольники равны, то равны и их соответствующие стороны. Сторона $CD$ в $\triangle ADC$ соответствует стороне $CB$ в $\triangle ABC$.<br>Таким образом, $CD = CB$.</p><p><strong>Ответ:</strong> Равенство $CD = CB$ доказано.</p>"
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            "text" => "<p><strong>Рис. 8.7</strong></p><p><svg width="200" height="210" viewBox="0 0 200 210"><line x1="100" y1="10" x2="20" y2="190" stroke="red" stroke-width="1.5"></line><line x1="100" y1="10" x2="180" y2="190" stroke="red" stroke-width="1.5"></line><line x1="20" y1="190" x2="140" y2="70" stroke="red" stroke-width="1.5"></line><line x1="180" y1="190" x2="60" y2="70" stroke="red" stroke-width="1.5"></line><text x="95" y="8" font-family="sans-serif" font-size="16">A</text><text x="10" y="200" font-family="sans-serif" font-size="16">B</text><text x="182" y="200" font-family="sans-serif" font-size="16">C</text><text x="45" y="70" font-family="sans-serif" font-size="16">E</text><text x="145" y="70" font-family="sans-serif" font-size="16">D</text><path d="M 77 45 L 85 55" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 123 45 L 115 55" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 55 120 L 63 130" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 51 126 L 59 136" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 145 120 L 137 130" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 149 126 L 141 136" stroke="red" stroke-width="1.5" fill="none"></path></svg></p><p><strong>Дано:</strong><br>$AB = AC$<br>$AE = AD$</p><p><strong>Доказать:</strong><br>$BD = CE$</p><p><strong>Доказательство:</strong><br>Рассмотрим треугольники $\triangle ABD$ и $\triangle ACE$.<br>1. $AB = AC$ (по условию).<br>2. $AD = AE$ (по условию).<br>3. $\angle BAD$ (или $\angle A$) — общий угол для обоих треугольников.<br>Следовательно, $\triangle ABD \cong \triangle ACE$ по первому признаку равенства треугольников (по двум сторонам и углу между ними).<br>Так как треугольники равны, то равны и их соответствующие элементы. Сторона $BD$ в $\triangle ABD$ соответствует стороне $CE$ в $\triangle ACE$.<br>Таким образом, $BD = CE$.</p><p><strong>Ответ:</strong> Равенство $BD = CE$ доказано.</p><p><strong>Рис. 8.8</strong></p><p><svg width="200" height="200" viewBox="0 0 200 200"><line x1="20" y1="100" x2="140" y2="40" stroke="red" stroke-width="1.5"></line><line x1="20" y1="100" x2="160" y2="100" stroke="red" stroke-width="1.5"></line><line x1="20" y1="100" x2="140" y2="160" stroke="red" stroke-width="1.5"></line><line x1="140" y1="40" x2="160" y2="100" stroke="red" stroke-width="1.5"></line><line x1="140" y1="160" x2="160" y2="100" stroke="red" stroke-width="1.5"></line><text x="5" y="105" font-family="sans-serif" font-size="16">A</text><text x="165" y="105" font-family="sans-serif" font-size="16">C</text><text x="135" y="35" font-family="sans-serif" font-size="16">D</text><text x="135" y="175" font-family="sans-serif" font-size="16">B</text><path d="M 70 65 L 80 75" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 70 135 L 80 125" stroke="red" stroke-width="1.5" fill="none"></path><path d="M 45 100 A 25 25 0 0 1 40 78" fill="none" stroke="red" stroke-width="1.5"></path><path d="M 45 100 A 25 25 0 0 0 40 122" fill="none" stroke="red" stroke-width="1.5"></path></svg></p><p>Текст задачи 8.8 относится к рисунку 8.7. Для рисунка 8.8, по-видимому, предполагается другая задача, условия которой можно определить по графическим обозначениям на нем. Исходя из этих обозначений, решим следующую задачу.</p><p><strong>Дано:</strong><br>$AD = AB$<br>$\angle DAC = \angle BAC$</p><p><strong>Доказать:</strong><br>$CD = CB$</p><p><strong>Доказательство:</strong><br>Рассмотрим треугольники $\triangle ADC$ и $\triangle ABC$.<br>1. $AD = AB$ (по условию, отмечено на рисунке).<br>2. $\angle DAC = \angle BAC$ (по условию, отмечено на рисунке).<br>3. $AC$ — общая сторона.<br>Следовательно, $\triangle ADC \cong \triangle ABC$ по первому признаку равенства треугольников (по двум сторонам и углу между ними).<br>Так как треугольники равны, то равны и их соответствующие стороны. Сторона $CD$ в $\triangle ADC$ соответствует стороне $CB$ в $\triangle ABC$.<br>Таким образом, $CD = CB$.</p><p><strong>Ответ:</strong> Равенство $CD = CB$ доказано.</p>"
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                    "created_at" => "2026-04-10 13:58:26"
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                    "edition" => Illuminate\Database\Eloquent\Collection {#1156}
                    "book_page" => array:2 [
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                      "type" => "book_page"
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                    "img" => array:1 [
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                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1268
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                      #escapeWhenCastingToString: false
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1269
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                    "content" => Illuminate\Database\Eloquent\Collection {#1272
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                    "book" => Illuminate\Database\Eloquent\Collection {#1278
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                      #escapeWhenCastingToString: false
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                    "page" => array:2 [
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                      #escapeWhenCastingToString: false
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                    "next" => array:2 [
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                  #changes: []
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                    0 => "*"
                  ]
                }
                2 => App\Models\Task {#1276
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
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№8.8 (с. 46)
Условие. №8.8 (с. 46)
скриншот условия
Геометрия, 7 класс Учебник, авторы: Смирнов Владимир Алексеевич, Туяков Есенкельды Алыбаевич, издательство Мектеп, Алматы, 2017, страница 46, номер 8.8, Условие

8.8. На рисунке 8.7 $AB = AC, AE = AD$. Докажите, что $BD = CE$.

Рис. 8.7

Рис. 8.8

Решение. №8.8 (с. 46)
Геометрия, 7 класс Учебник, авторы: Смирнов Владимир Алексеевич, Туяков Есенкельды Алыбаевич, издательство Мектеп, Алматы, 2017, страница 46, номер 8.8, Решение
Решение 2. №8.8 (с. 46)

Рис. 8.7

ABCED

Дано:
$AB = AC$
$AE = AD$

Доказать:
$BD = CE$

Доказательство:
Рассмотрим треугольники $\triangle ABD$ и $\triangle ACE$.
1. $AB = AC$ (по условию).
2. $AD = AE$ (по условию).
3. $\angle BAD$ (или $\angle A$) — общий угол для обоих треугольников.
Следовательно, $\triangle ABD \cong \triangle ACE$ по первому признаку равенства треугольников (по двум сторонам и углу между ними).
Так как треугольники равны, то равны и их соответствующие элементы. Сторона $BD$ в $\triangle ABD$ соответствует стороне $CE$ в $\triangle ACE$.
Таким образом, $BD = CE$.

Ответ: Равенство $BD = CE$ доказано.

Рис. 8.8

ACDB

Текст задачи 8.8 относится к рисунку 8.7. Для рисунка 8.8, по-видимому, предполагается другая задача, условия которой можно определить по графическим обозначениям на нем. Исходя из этих обозначений, решим следующую задачу.

Дано:
$AD = AB$
$\angle DAC = \angle BAC$

Доказать:
$CD = CB$

Доказательство:
Рассмотрим треугольники $\triangle ADC$ и $\triangle ABC$.
1. $AD = AB$ (по условию, отмечено на рисунке).
2. $\angle DAC = \angle BAC$ (по условию, отмечено на рисунке).
3. $AC$ — общая сторона.
Следовательно, $\triangle ADC \cong \triangle ABC$ по первому признаку равенства треугольников (по двум сторонам и углу между ними).
Так как треугольники равны, то равны и их соответствующие стороны. Сторона $CD$ в $\triangle ADC$ соответствует стороне $CB$ в $\triangle ABC$.
Таким образом, $CD = CB$.

Ответ: Равенство $CD = CB$ доказано.

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