Question

The formula for the volume of a cone is

$\frac{1}{3}\times \pi \times (radius{)}^2\times height$.

If the radius of the cone = 7 cm and

$height=\frac{3}{22}cm$.

The volume of the cone is ___ .
$Take\pi =\frac{22}{7}$

Answer 1

Given: $r=7cm$

$h=\frac{3}{22}cm$

$\therefore Vol=\frac{1}{3}\times \pi \times (radius{)}^2\times height$.

$=\frac{1}{3}\times \frac{22}{7}\times (7cm{)}^2\times \frac{3}{22}cm$

$=\frac{1}{3}\times \frac{22}{7}\times 7^{2}c{m}^2\times \frac{3}{22}cm$

$=7c{m}^3$