Question

What is the exact volume of a cylinder whose radius is 13 meters and whose height is 20 meters?

Answer 1

$\bf \textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\ -----\\ r=13\\ h=20 \end{cases}\implies V=\pi (13)^2(20)\implies V=3380\pi$