find the area of base and radius of a cylinder if its curved surface area is 660sqcm and height is 21 cm
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Given
C.S.A of cylinder=660sqcm
Height=21cm
To find
Radius
C.S.A of cylinder=2pi*r*h
660=2*22/7*r*21
660=2*22*r*3
660=44*r*3
r=660/44*3
r=5cm
Ans
Radius of cylinder is 5cm
Hope it helps you
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