Предмет: Математика, автор: Darina574

Длина прямоугольника равен 64 см. Ширина составляет 40% от его длины.
Чему равна площадь прямоугольника?

Ответы

Автор ответа: ritavobobeva8
0
64см. - 100%
хсм.   - 40%
пропорция:
х/64=40/100
х = 40*64/100
х=25,6
 площадь равна :
64*25,6=1638,4см²
1638,4=16,384дм.
²
Ответ:16,384дм
²
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