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Автор - lililili110720

длина окружности равна 31,4см. Найдите площадь круга, радиус которого на 1 см больше радиуса данной окружности. (пи округлите до сотых)

Ответ

Автор - SaтаkuндА
L=2пR
R=L/2п =31.4/6.28=5
R1=R+1= 6
S=(пR)² =36п=113,04

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