Question

The area of the base of a right circular cone is $78.5$ cm${}^2$. If its height is $12$ cm. Find its volume(in $c{m}^3$).

Answer 1

R.E.F image

$V=\frac{1}{3}\times baseArea\times ht=\frac{1}{3}\times 78.5\times 12$

$\Rightarrow V=314c{m}^3$