Question

The radius of a cone is $7cm$ and area of curved surface is $176c{m}^2$. Find the slant height.

Answer 1

Radius of cone$\left(r\right)=7cm$
Curved surface area $(C.S.A.)=176c{m}^2$

We know, $C.S.A.=\pi rl$
$\Rightarrow \pi rl=176$
$\Rightarrow \frac{22}{7}\times 7\times l=176$
$\Rightarrow l=\frac{176}{22}=8$
Therefore, slant height of the cone is $8cm$.