Question

Find the volume of a right circular cone of radius $14cm$ and height $21cm$. [Given: $\pi =\frac{22}{7}$]

Answer 1

Given: $r=14cm$, $h=21cm$, $\pi =\frac{22}{7}$
Dictate and write:
ATQ,
Volume of the cone $=\frac{1}{3}\pi r^{2}h$
$=\frac{1}{3}\times \frac{22}{7}\times {14}^2\times 21$
$=4312c{m}^3$.