Question

The radius of the base of a right circular cone is $r$ and its height is $2h$, then its volume is

• A. $\frac{2}{3}\pi r^{2}h$
• B. $\pi r^{2}h$
• C. $2\pi r^{3}h$
• D. $\frac{1}{3}\pi r^{2}h$

Answer 1

The correct option is A $\frac{2}{3}\pi r^{2}h$

Given, radius $=r$ and height $=2h$
Then volume of circular cone $=\frac{1}{3}\pi r^{2}h$

$=\frac{1}{3}\pi r^2\left(2h\right)$

$=\frac{2}{3}\pi r^{2}h$