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C.S.A of the Cone

Find the curv...

Question

Find the curved surface area of a cone, if its slant height is 60 cm and the radius of its base is 21 cm.

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Solution

The formula of the curved surface area of a cone with base radius ‘r’ and slant height ‘l’ is given as

Curved Surface Area =

Substituting the values of r = 21 cm and l = 60 cm in the above equation and using

Curved Surface Area will be,
=

=

=

Therefore the Curved Surface Area of the cone with the specified dimensions is .

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