Question

The curved surface area of a cone is 308 cm² and it's base radius is 7 cm then find its slant height?​

Answer 1

CSA of cone = 308cm²

r(radius) = 7cm

l (slant height) =?

CSA of cone = πrl

308 = 22/7 ×7 ×l

308 = 22 ×l

308 /22 = l

14 cm = l

Therefore, slant height of cone = 14cm

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