Question

The area of the base of a right circular cone is $314c{m}^2.$ And its height is $15cm.$ find the volume of the cone.

Answer 1

The area of the base of a right circular cone is $314c{m}^2.$

And, height $=15cm$

Area of base of a right circular cone $=\pi r^2$

$\pi r^2=314$

Now, volume of cone $=\frac{1}{3}\pi r^{2}h=\frac{1}{3}\times 314\times 15=1570c{m}^3$ [$\because \pi r^2=314$]