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Найдите площадь полной поверхности конуса с радиусом основания 12см и высотой 5 см (считать П приблизительно 3)
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Дано: R = 12 см.H = 5 см.Найти: Sп.п.Решение:Площадь полной поверхности конуса равна: S =
Отсюда следует: 3,14 * 12 (12 + корень из 144 + 25) = 37,68 * (12 + 13) = 37,68 * 25 = 942.
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Автор:
diggerlowe - 5 лет назад
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