Предмет: Геометрия, автор: RitsuHotarubi

Длина окружности равна 18 см. Вычислите площадь круга, ограниченного этой окружностью

Ответы

Автор ответа: Nyany4

0

С=2пR

R=2п/С
R=2п/18=п/9
S=пR^2
S=п*(п/9)^2=п^3/81

P.S. Аниме няшки :3

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