Question

A cylinder has a diameter of 10 inches and a height of 18 inches. what is the volume of the cylinder A. 450 pie B. 1800 pie C. 180 pie D. 810 pie
please answer fast thank you

Answer 1

if its diameter is 10, that means its radius is half that, or 5.

$\textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=5\\ h=18 \end{cases}\implies V=\pi (5)^2(18)\implies V=450\pi$