Question

Find the volume of the right circular cone with radius $3.5cm$, height $12cm$ (Assume $\pi =22/7$).

Answer 1

Compute the volume of the right circular cone:

Given : Radius, $r=3.5cm$ and height $h=12cm$

The volume of the right circular cone $=\frac{1}{3}\pi r^{2}h$

$$\begin{gathered} =\frac{1}{3}\pi {\left(3.5\right)}^2\times \left(12\right) \\ =\frac{22}{7}\times 12.25\times 4 \\ =154c{m}^3 \end{gathered}$$

Hence, the volume of the right circular cone is $154c{m}^3$.