Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area (Assume π = 22/7)


Slant height of cone, (l) = 10 cm

Radius = diameter / 2 

Radius(r) = (10.5/2)cm = 5.25cm

Find out

We have to find curved surface area of cone


Since, Curved surface area of cone is = πrl

= (22/7)×5.25×10

= 165 cm2


Therefore, the curved surface area of the cone of height 10m and base 10.5 cm is 165 cm2.

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