Предмет: Геометрия, автор: Garben

Срочно :

Чему равна длина окружности, площадь круга которого равна 25π? Считайте π = 3.

Ответы

Автор ответа: Lyubaha2011

радиус =√(25ΠΠ)=5
до.окр.=2Πr=30

Автор ответа: Аноним

площадь круга которого равна S =25π
S = пR^2
R = √S/п
длина окружности C = 2пR = 2п*√S/п= 2√Sп = 2√25п*п=2*5*п=2*5*3 = 30

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Срочно :Чему равна длина окружности, площадь круга которого равна 25π? Считайте π = 3.

Ответы

Срочно :

Чему равна длина окружности, площадь круга которого равна 25π? Считайте π = 3.