Предмет: Математика, автор: nicekesyan

Сумма длин всех рёбер куба 1020 см.Найди объём куба.

Ответы

Автор ответа: kolobok1431
9
У куба 12 рёбер
1) 1020 : 12 = 85 см - длина ребра куба
2) V = a³ , где V - объём куба;  а - ребро
V = 85 * 85 * 85 = 614 125 см³ 
Ответ: 614 125 см³

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