Номер 9, страница 233 - гдз по геометрии 10-11 класс учебник Атанасян, Бутузов

Геометрия, 10-11 класс Учебник, авторы: Атанасян Левон Сергеевич, Бутузов Валентин Фёдорович, Кадомцев Сергей Борисович, Позняк Эдуард Генрихович, Киселёва Людмила Сергеевна, издательство Просвещение, Москва, 2019, коричневого цвета

Авторы: Атанасян Л. С., Бутузов В. Ф., Кадомцев С. Б., Позняк Э. Г., Киселёва Л. С.

Тип: Учебник

Издательство: Просвещение

Год издания: 2019 - 2026

Уровень обучения: базовый и углублённый

Цвет обложки: коричневый с ромбами

ISBN: 978-5-09-103606-0 (2023)

Допущено Министерством просвещения Российской Федерации

Математика: алгебра и начала математического анализа, геометрия

Задачи для подготовки к ЕГЭ. 8 - номер 9, страница 233.

App\Models\Task {#1024 // resources/views/models/task/default.blade.php
  #connection: "mysql"
  #table: "tasks"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
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    "field_task_type" => Illuminate\Database\Eloquent\Collection {#331
      #items: array:1 [
        0 => App\Models\Term {#1029
          #connection: "mysql"
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              "field_accusative_case" => "номер"
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              "field_genitive_case" => "номера"
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          ]
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              "field_prepositional_case" => "номере"
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    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1026
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    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#342
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          #keyType: "int"
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              #items: array:1 [
                0 => App\Models\Book {#1030
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                            "updated_at" => null
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                            "field_cases" => array:6 [ …6]
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                    "field_class" => Illuminate\Database\Eloquent\Collection {#1035
                      #items: array:2 [
                        0 => App\Models\Term {#1036
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
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                            "created_at" => "2026-04-10 13:58:26"
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                            "field_cases" => array:6 [ …6]
                            "field_translit" => "desjatyj"
                          ]
                          #original: array:6 [
                            "id" => 5459
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "10"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "desjatyj"
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                          #guarded: array:1 [
                            0 => "*"
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                        1 => App\Models\Term {#1037
                          #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_translit" => "odinadcatyj"
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                          #original: array:6 [
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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1038
                      #items: array:1 [
                        0 => App\Models\Term {#1039
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
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                          #original: array:6 [
                            "id" => 5153
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                    "field_author" => Illuminate\Database\Eloquent\Collection {#1040
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                        0 => App\Models\Term {#1041
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
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                        3 => App\Models\Term {#1044
                          #connection: "mysql"
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                        4 => App\Models\Term {#1045
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                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1046
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1047
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                        0 => App\Models\Term {#1048
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                          #table: "terms"
                          #primaryKey: "id"
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                          #attributes: array:10 [
                            "id" => 6671
                             …9
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                        }
                      ]
                      #escapeWhenCastingToString: false
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                    "field_country" => Illuminate\Database\Eloquent\Collection {#1049
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                        0 => App\Models\Term {#1050
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
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                        }
                      ]
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                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1051
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                        0 => App\Models\Term {#1052
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
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                          #attributes: array:6 [ …6]
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                          #guarded: array:1 [ …1]
                        }
                      ]
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                    "field_series" => Illuminate\Database\Eloquent\Collection {#1053
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                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1054
                      #items: []
                      #escapeWhenCastingToString: false
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                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1055
                      #items: array:1 [
                        0 => App\Models\Term {#1056
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
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                          #attributes: array:6 [ …6]
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                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1057
                      #items: array:1 [
                        0 => App\Models\Term {#1058
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
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                          #attributes: array:10 [ …10]
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                          #guarded: array:1 [ …1]
                        }
                      ]
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                    }
                    "field_publication_number" => "11"
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1059
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                        0 => App\Models\Term {#1060
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
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                        }
                      ]
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                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1061
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                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => "с ромбами"
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для общеобразовательных организаций"
                    "field_allowed" => "Допущено Министерством просвещения Российской Федерации"
                    "field_reserve_field" => "Математика: алгебра и начала математического анализа, геометрия"
                    "field_link_to_source" => null
                    "field_tasks_count" => "1147"
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                    "field_isbn" => "978-5-09-103606-0 (2023)"
                    "field_cover" => array:1 [
                      0 => "/media/geometrija_10/atanasjan-u23/covers/cover1.webp?ts=1739363242"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
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                      0 => array:4 [
                        "path" => "/media/geometrija_10/atanasjan-u23/covers/cover1.webp?ts=1739363242"
                        "alt" => ""
                        "width" => "1200"
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                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1062
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                      #escapeWhenCastingToString: false
                    }
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                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1064
                      #items: []
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                    }
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                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1065
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                        0 => App\Models\Term {#1066
                          #connection: "mysql"
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                          #keyType: "int"
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                          #attributes: array:6 [ …6]
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                        }
                      ]
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                    "field_metatags_title" => null
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                    "breadcrumbs" => array:3 [
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                    ]
                  ]
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_tree_default_status" => "tasks"
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                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1032}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1035}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1038}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1040}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1046}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1047}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1049}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1051}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1053}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1054}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1055}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1057}
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                    "field_cover_description" => "с ромбами"
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                    "field_publication_year_until" => null
                    "field_part" => ""
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                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для общеобразовательных организаций"
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                      0 => "/media/geometrija_10/atanasjan-u23/covers/cover1.webp?ts=1739363242"
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                    "field_url" => "/10-klass/geometrija/atanasjan-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1065}
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            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1067
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            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#333}
            "field_page_start" => "229"
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            "book" => Illuminate\Database\Eloquent\Collection {#1033}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1067}
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        }
      ]
      #escapeWhenCastingToString: false
    }
    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1068
      #items: array:2 [
        0 => App\Models\Branch {#1023}
        1 => App\Models\Branch {#1069
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #perPage: 15
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          +wasRecentlyCreated: false
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            "id" => 745566
            "created_at" => "2026-04-10 13:58:26"
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            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1070
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              #escapeWhenCastingToString: false
            }
            "field_page_start" => "233"
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            "field_branch_title_in_content" => "0"
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            "field_h1" => null
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            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1071
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                0 => App\Models\Book {#1030}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1072
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                0 => App\Models\Branch {#1073
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1074 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1075 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1111 …2}
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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1074 …2}
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                    "field_h1" => null
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                    "book" => Illuminate\Database\Eloquent\Collection {#1075 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1111 …2}
                  ]
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                  #hidden: []
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
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          ]
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            "updated_at" => null
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            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1070}
            "field_page_start" => "233"
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            "field_h1" => null
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            "book" => Illuminate\Database\Eloquent\Collection {#1071}
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      ]
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1112
      #items: array:4 [
        0 => App\Models\Element {#1113
          #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" => 940632
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1114
              #items: array:1 [
                0 => App\Models\Edition {#1115
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #perPage: 15
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                  +wasRecentlyCreated: false
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                  #attributes: array:21 [
                    "id" => 2315
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1116 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
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                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
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                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1118 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1119 …2}
                    "field_process_formula" => "wiris"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1120 …2}
                    "field_content_source" => null
                  ]
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                    "id" => 2315
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1116 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
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                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
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                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1118 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1119 …2}
                    "field_process_formula" => "wiris"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1120 …2}
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                  ]
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                    0 => "*"
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                }
              ]
              #escapeWhenCastingToString: false
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            "task" => array:2 [
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              "type" => "task"
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            "text" => "<p> <b>9.</b> Площадь боковой поверхности цилиндра равна 2π, а диаметр основания равен 1. Найдите высоту цилиндра. </p>"
            "img" => array:1 [
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                "alt" => null
                "width" => "1510"
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                "path" => "/media/geometrija_10/atanasjan-u23/0-eg-3/9-1.webp?ts=1739437006"
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            ]
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            "id" => 940632
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1114}
            "task" => array:2 [
              "refs" => "745357"
              "type" => "task"
            ]
            "text" => "<p> <b>9.</b> Площадь боковой поверхности цилиндра равна 2π, а диаметр основания равен 1. Найдите высоту цилиндра. </p>"
            "img" => array:1 [
              0 => array:5 [
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                "alt" => null
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                "height" => 161
                "path" => "/media/geometrija_10/atanasjan-u23/0-eg-3/9-1.webp?ts=1739437006"
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            0 => "*"
          ]
        }
        1 => App\Models\Element {#1121
          #connection: "mysql"
          #table: "elements"
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            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1122
              #items: array:1 [
                0 => App\Models\Edition {#1123
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #perPage: 15
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                  #attributes: array:21 [
                    "id" => 2316
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 1"
                    "field_order" => "2"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1124 …2}
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                    "field_edition_type" => "solution"
                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1126 …2}
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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1127 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1128 …2}
                    "field_content_source" => null
                  ]
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                    "id" => 2316
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 1"
                    "field_order" => "2"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1124 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "image"
                    "field_page_content_mode" => ""
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                    "field_solution_author" => "Пелеванюк"
                    "field_moderator" => "filin"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1126 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1127 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1128 …2}
                    "field_content_source" => null
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
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            "task" => array:2 [
              "refs" => "745357"
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            "img" => array:1 [
              0 => array:5 [
                "name" => "9-1.jpg"
                "alt" => null
                "width" => "1768"
                "height" => 1343
                "path" => "/media/geometrija_10/atanasjan-u23/1-eg-3/9-1.webp?ts=1739436166"
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            "id" => 939346
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1122}
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              "refs" => "745357"
              "type" => "task"
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                "name" => "9-1.jpg"
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                "width" => "1768"
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                "path" => "/media/geometrija_10/atanasjan-u23/1-eg-3/9-1.webp?ts=1739436166"
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        2 => App\Models\Element {#1129
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
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            "id" => 942903
            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1130
              #items: array:1 [
                0 => App\Models\Edition {#1131
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                    "id" => 2317
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1132 …2}
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                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1134 …2}
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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1135 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1136 …2}
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                    "updated_at" => null
                    "title" => "Решение 2"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1132 …2}
                    "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" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1134 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1135 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1136 …2}
                    "field_content_source" => null
                  ]
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                  +timestamps: true
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              ]
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            "img" => array:1 [
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                "name" => "9-1.png"
                "alt" => null
                "width" => "694"
                "height" => 1082
                "path" => "/media/geometrija_10/atanasjan-u23/2-eg-3/9-1.webp?ts=1739441808"
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          ]
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            "id" => 942903
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1130}
            "task" => array:2 [
              "refs" => "745357"
              "type" => "task"
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            "img" => array:1 [
              0 => array:5 [
                "name" => "9-1.png"
                "alt" => null
                "width" => "694"
                "height" => 1082
                "path" => "/media/geometrija_10/atanasjan-u23/2-eg-3/9-1.webp?ts=1739441808"
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            0 => "*"
          ]
        }
        3 => App\Models\Element {#1137
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
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          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1352670
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1138
              #items: array:1 [
                0 => App\Models\Edition {#1139
                  #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" => 5120
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 6"
                    "field_order" => "7"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1140 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text"
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "vadim"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "6-"
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                    "field_process_formula" => "katex"
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                  ]
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                    "id" => 5120
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                    "updated_at" => null
                    "title" => "Решение 6"
                    "field_order" => "7"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1140 …2}
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "vadim"
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                  ]
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                  +timestamps: true
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                  #visible: []
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                    0 => "*"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
              "refs" => "745357"
              "type" => "task"
            ]
            "text" => "<p>Площадь боковой поверхности цилиндра ($S_{бок}$) вычисляется по формуле, связывающей радиус основания $r$ и высоту $h$: $S_{бок} = 2 \pi r h$.</p><p>Поскольку диаметр основания $d$ связан с радиусом соотношением $d = 2r$, формулу можно переписать, используя диаметр:</p><p>$S_{бок} = (2r) \pi h = \pi d h$</p><p>Из условия задачи нам даны:</p><p>Площадь боковой поверхности $S_{бок} = 2\pi$.</p><p>Диаметр основания $d = 1$.</p><p>Подставим известные значения в формулу $S_{бок} = \pi d h$ и найдем высоту $h$:</p><p>$2\pi = \pi \cdot 1 \cdot h$</p><p>$2\pi = \pi h$</p><p>Чтобы найти $h$, разделим обе части уравнения на $\pi$:</p><p>$h = \frac{2\pi}{\pi}$</p><p>$h = 2$</p><p><strong>Ответ:</strong> 2</p>"
          ]
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            "id" => 1352670
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1138}
            "task" => array:2 [
              "refs" => "745357"
              "type" => "task"
            ]
            "text" => "<p>Площадь боковой поверхности цилиндра ($S_{бок}$) вычисляется по формуле, связывающей радиус основания $r$ и высоту $h$: $S_{бок} = 2 \pi r h$.</p><p>Поскольку диаметр основания $d$ связан с радиусом соотношением $d = 2r$, формулу можно переписать, используя диаметр:</p><p>$S_{бок} = (2r) \pi h = \pi d h$</p><p>Из условия задачи нам даны:</p><p>Площадь боковой поверхности $S_{бок} = 2\pi$.</p><p>Диаметр основания $d = 1$.</p><p>Подставим известные значения в формулу $S_{бок} = \pi d h$ и найдем высоту $h$:</p><p>$2\pi = \pi \cdot 1 \cdot h$</p><p>$2\pi = \pi h$</p><p>Чтобы найти $h$, разделим обе части уравнения на $\pi$:</p><p>$h = \frac{2\pi}{\pi}$</p><p>$h = 2$</p><p><strong>Ответ:</strong> 2</p>"
          ]
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          +timestamps: true
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          #hidden: []
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            0 => "*"
          ]
        }
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      #escapeWhenCastingToString: false
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    "next" => array:2 [
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      "type" => "task"
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    "book" => Illuminate\Database\Eloquent\Collection {#1145
      #items: array:1 [
        0 => App\Models\Book {#1030}
      ]
      #escapeWhenCastingToString: false
    }
    "page" => Illuminate\Database\Eloquent\Collection {#1546
      #items: array:1 [
        0 => App\Models\BookPage {#1149
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:21 [
            "id" => 934015
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "233"
            "field_url" => "/10-klass/geometrija/atanasjan-uchebnik/page-233"
            "field_display_title" => "233"
            "field_folder" => "1"
            "field_image_name" => "233"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1153
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1152
              #items: array:1 [
                0 => App\Models\Book {#1154
                  #connection: "mysql"
                  #table: "books"
                  #primaryKey: "id"
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№9 (с. 233)
Условие. №9 (с. 233)
скриншот условия
Геометрия, 10-11 класс Учебник, авторы: Атанасян Левон Сергеевич, Бутузов Валентин Фёдорович, Кадомцев Сергей Борисович, Позняк Эдуард Генрихович, Киселёва Людмила Сергеевна, издательство Просвещение, Москва, 2019, коричневого цвета, страница 233, номер 9, Условие

9. Площадь боковой поверхности цилиндра равна 2π, а диаметр основания равен 1. Найдите высоту цилиндра.

Решение 1. №9 (с. 233)
Геометрия, 10-11 класс Учебник, авторы: Атанасян Левон Сергеевич, Бутузов Валентин Фёдорович, Кадомцев Сергей Борисович, Позняк Эдуард Генрихович, Киселёва Людмила Сергеевна, издательство Просвещение, Москва, 2019, коричневого цвета, страница 233, номер 9, Решение 1
Решение 2. №9 (с. 233)
Геометрия, 10-11 класс Учебник, авторы: Атанасян Левон Сергеевич, Бутузов Валентин Фёдорович, Кадомцев Сергей Борисович, Позняк Эдуард Генрихович, Киселёва Людмила Сергеевна, издательство Просвещение, Москва, 2019, коричневого цвета, страница 233, номер 9, Решение 2
Решение 6. №9 (с. 233)

Площадь боковой поверхности цилиндра ($S_{бок}$) вычисляется по формуле, связывающей радиус основания $r$ и высоту $h$: $S_{бок} = 2 \pi r h$.

Поскольку диаметр основания $d$ связан с радиусом соотношением $d = 2r$, формулу можно переписать, используя диаметр:

$S_{бок} = (2r) \pi h = \pi d h$

Из условия задачи нам даны:

Площадь боковой поверхности $S_{бок} = 2\pi$.

Диаметр основания $d = 1$.

Подставим известные значения в формулу $S_{бок} = \pi d h$ и найдем высоту $h$:

$2\pi = \pi \cdot 1 \cdot h$

$2\pi = \pi h$

Чтобы найти $h$, разделим обе части уравнения на $\pi$:

$h = \frac{2\pi}{\pi}$

$h = 2$

Ответ: 2

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