Question

An ice-cream was frozen in a cylindrical mould of radius $35$ cm and height $21$ cm.

Find the volume of the ice-cream in $c{m}^2$.

Answer 1

$\begin{array}{c}Wehave\\ radius=35cm\\ and,height=21cm\\ Weknowthat\\ Thevolumeofcylinder=\pi r^{2}h\\ =\frac{22}{7}\times {\left(35\right)}^2\times 21\\ =\frac{22}{7}\times 35\times 35\times 21\\ =22\times 5\times 35\times 21\\ =80850c{m}^3\end{array}$