Предмет: Математика, автор: mmatamata7

найдите площадь друга,описанного около квадрата ,сторона которого 6см.

Ответы

Автор ответа: kitchenrecords

диаметр круга это диагональ квадрата $2R=6sqrt{2}$ ,
площадь круга = $pi R^2 = pileft(frac{6sqrt{2}}{2}right)^2 = 18pi$

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