Предмет: Геометрия, автор: polikarpova9797

Основание прямой призы служит ромб. Высота призмы 10 см, диагонали равны 16 и 14 см. Найти сторону основания.

Ответы

Автор ответа: oganesbagoyan
1
Допустим ABCD основание ;  BD  меньший  диагональ ; длина стороны  основания обозначаем a , высота призмы_H =10 см .
{ BD² + H² =14² ; AC² + H² = 16² .{ BD² + AC² + 2H² = 14²+16² ; H =10.
 4a² + 2*10² = 14²+16² 
=63 .
а =3√7 (см)  .

ответ: 3√7 см   ≈7,94 см  .
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5.You ________ smoke so much. It's bad for your health!
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8.I ________ afford that.
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