Question

What is the volume of the following cylinder?

Answer 1

If the diameter is 12, then its radius is half that, or 6.

$\bf \textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\ -----\\ r=6\\ h=15 \end{cases}\implies V=\pi (6)^2(15)\implies V=540\pi$

Answer 2

Formula: V=πr^(2) x h

r is radius. right now you have diameter so divide 12 and get 6
6^2 = 36
36 x 15 = 540
540 x 3.14 = 1696.46