Question

The radius and slant height of a cone are $7cm$ and $10cm$ respectively. Find its curved surface area. $(\pi =\frac{22}{7})$

Answer 1

Given, the radius and slant height ($l$) of a cone are $7cm$ and $10cm$ respectively.
Curved surface area of a cone $=\pi rl$
$=\frac{22}{7}\times 7\times 10$
$=220c{m}^2$