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C.S.A of the Cone

The curved su...

Question

The curved surface area of a cone is 440 sq. cm and slant height is 10 cm. Find the radius of the cone.

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Solution

Let r be the radius of the cone.
Slant height of the cone (l) = 10 cm
Curved surface area of the cone
Thus, the radius of the cone is 14 cm.

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