Предмет: Математика, автор: sanikitaser

Радиус окружности равен 15 см. Вычислите приближенно длину окружности и площадь ограниченного ею круга, считая π≈3,14. 17 балов!
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Ответы

Автор ответа: sergyzak2020bor
3

Ответ:

l=2\pi r \\l=2*3.14*15

l=94,2 cm

S=\pi r^{2}\\ S = 3,14*15^2

S=706,5 cm²

Пошаговое объяснение:

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