Question

A cylinder has a volume of 18 in 3. Which are possible dimensions of the cylinder?

Answer 1

We compute the volume of a cylinder using the next equation:

`V=h\cdot r^2\cdot\pi`

Where h is the heigh and r is the radio of the circle face.

The exercise is giving the volumen V = 18 pi, so let's look for the right numbers which can give this result.

`\begin{gathered} r=3\text{ in} \\ h=2\text{ in} \\ V=2\cdot3^2\cdot\pi=2\cdot9\cdot\pi=18\pi \end{gathered}`

Therefore the correct answer is the 3rd option, r = 3 in and h = 2 in.