Question

What is the radius of the cone in inches?

Answer 1

well, radius is half of the diameter, that simply means 8/2 = 4, that's the radius

`\textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=4\\ h=9 \end{cases}\implies V=\cfrac{\pi (4)^2(9)}{3}\implies V=48\pi\implies V\approx 150.8`