Предмет: Алгебра, автор: nastenaserebry

Сторона основания правильной треугольной пирамиды равна 6 см, а ее апофема – 10см. Вычислите площадь боковой поверхности пирамиды.

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Автор ответа: irinan2014

6

Всё решаем по формулам.........2-е действие отвечает на вопрос задачи.

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