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The radius and height of  a right circular cone are in the ratio and volume is , then find the curved surface area and the total surface area of the cone is 

A

B

C

D

Answer

Let the radius be 5x  height be 12x
volume  = 2512
volume  of right  circular  cone =
So radius = 10 cm height =24 cm
CSA=
=816.4+
=1130.56

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