Предмет: Математика, автор: diananurkenova2010

Вычисли площадь фигуры

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Ответы

Автор ответа: Sumpax

0

Ответ:

S=½h(a+b)

h=7, b=4 по условию

Находим а: складываем известные величины (2+4), а затем с помощью пристального взгляда понимаем, что высоты помогли образовать прямоугольник, одна из сторон которого лежит на искомом основании. Значит, 2+4+4=10.

Считаем площадь:

S=(10+4)*7/2=49

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