Предмет: Геометрия, автор: lozhkinalana

Радиус описанной около правильного n-угольника окружности вычесляется по формуле... ?

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Автор ответа: Сергей720

0

R = a / (2sin×180°/n) ,
где a - сторона мн-ка
n - кол-во сторон

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