Q1 of 63 Page 21

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

Given,


Slant height of cone (r) = 60 cm


Radius of base of cone (l) = 21 cm


Curved surface area of cone = πrl = 22/7 × 21 × 60 = 3960 cm2


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