Предмет: Геометрия, автор: erik7801

найдите площадь трапеции если её основания 12см и 20см, а высота 6 см​

Ответы

Автор ответа: lizza191005
2

Ответ:

s= 1/2•(a+b) •h

s = 1/2•(12+20) •6 = 96 см²

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