Find the area of base and radius if a cylinder if its curved surface area is 660 square cm and height is 21 CM
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Area of the cylinder =78.57
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CSA = 660 square cm
height = 21 cm
CSA = 2 PIE rh
2 * 22/7 * r * 21
660 = 132* r
132 * r = 660
r = 660/132
r = 5
Base area = pie * r * r
22/7 * 5 *5 = 78.57
djvarunprasad72:
I am not so sure
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