Question

The radius of the base of a right circular cylinder is $3cm$ and its height is $7cm$, find the curved surface area.

Answer 1

Let radius and height of the cylinder be $r$ and $h$, respectively.

So, $r=3$cm and $h=7$cm

C.S.A. of cylinder $=2\pi rh$

C.S.A. of cylinder$=2\times \frac{22}{7}\times 3\times 7$

C.S.A. of cylinder$=132c{m}^2$