Предмет: Геометрия, автор: belyy99

Основание трапеции равно 7 другое в 3 раза больше. Высота трапеции равна её средней линии. Найдите площадь трапеции.

Ответы

Автор ответа: du4ara

1)Второе основание трапеции равно 7*3=21.
2)Средняя линия трапеции равны (7+21)/2=28/2=14.
3) Т.к. высота равны средней линии, то она равны14.
4) S=14*14=196

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