Предмет: Математика, автор: dankvas13

Как узнать диаметр круга если есть толька площа каторая 4900π м√2

Ответы

Автор ответа: Микадо

Ответ:

D = 140 м

Пошаговое объяснение:

S=πr² - площадь круга

r²=S/π

r²=4900π /π = 4900 м²

r = √4900 = 70 м

D=2r=2*70=140 м

D = 140 м

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