Question

what is the volume in cubic inches of a cylinder with a height of 20 inches and a base radius of 2in to the nearest tenths place

Answer 1

1) We've been told that this is a cylinder. So we can find out its volume by making use of this formula below:

`V_{\text{cylinder}}=\pi\cdot r^2\cdot h`

2) So let's plug into that the given information:

`\begin{gathered} V_{\text{cylinder}}=\pi\cdot r^2\cdot h \\ V_{\text{cylinder}}=\pi\cdot(2)^2\cdot20 \\ V_{\text{cylinder}}=80\pi in^3 \\ V_{\text{cylinder}}\approx251.3in^3 \end{gathered}`

3) Hence, the volume of that cylinder rounded off to the nearest tenth is 251.3 in³