Предмет: Геометрия, автор: grbodikov

Ребята, ну кто-нибудь выручайте, ПОЖАЛУЙСТА!!!!!
Найдите синус острого угла трапеции, изображённой на рисунке.

Приложения:

Maloween: Это не 9 класс походу :/
grbodikov: Я в 9 классе учюсь, это просто мой профиль показывает 10-11 класса.
grbodikov: Короче, помоги мне.
grbodikov: Ну и подумаешь что это не 9 класс, всё равно помоги, и я дам вам баллы.

Ответы

Автор ответа: Shakal122
1

Ответ:

1

Объяснение:

Синус - это отношение противоположного катета к гипотенузе

Решение:

Мы видим на рисунке трапецию, но мы можем построить из неё треугольник, путём добавления одной линии.

Т.К. это задание по клеточкам, то мы видим что

(Допустим строну назову как AA1 (это самая левая линия) а ту линию, которую провели для треугольника ВВ1)

АА1=ВВ1 это и так видно

противоположный катет равен тоже 4 клетки, тоесть 4 (Назову его СС1)

И так, синус = СС1 : ВВ1 = 4 : 4 = 1

синус = 1

Ответ: 1

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