Question

The radius of a cylinder is $7cm$. The curved surface area is $660c{m}^2$. Find its height.

Answer 1

Given,$Radius,r=7cm$
$CSA=660c{m}^2$

$CSAofcylinder=2\pi rh$

$660=2\times \frac{22}{7}\times 7\times h$

$h=\frac{660}{2\times 22}cm$

$h=15cm$