Предмет: Геометрия, автор: kitten14

Найти площадь ромба, если одна из его диагоналей равна 12 см, а боковая сторона 10 см.

Ответы

Автор ответа: eden01

диагонали ромба точкой пересечения делятся пополам.

половина данной диагонали =12:2=6см

по теореме Пифагора:

10^2-6^2=половина другой диагонали в квадрате = 64

половина второй диагонали =8, вся диагональ =8+8=16

S ромба=1/2*12*16=96см^2

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