Question

What is the volume of the cylinder below?

Answer 1

B) Volume of cylinder is
`36 \pi` units³.

Explanation:

Given : Cylinder.

To find : what is the volume of the cylinder below.

Solution : We have given cylinder with radius = 3 units.

Height = 4 units .

Volume of cylinder =
`\pi * radius^(2) * height.`

Plug the values

Volume of cylinder =
`\pi * (3)^(2) * 4`.

Volume of cylinder =
`\pi* 9 * 4`.

Volume of cylinder =
`\pi 36` units³.

Volume of cylinder is
`36 \pi` units³.

Therefore, B) Volume of cylinder is
`36 \pi` units³.

Answer 2

B

Explanation:

The formula for volume of cylinder is given below:

volume of cylinder =
`\pi r^2 h`

Where r is the radius (here, it is given as 3)

h is the height, the perpendicular distance from base to top (here, it is 4 NOT 5 since 5 is the 'slant height')

Plugging in the available info , we get our answer:

`\pi r^2 h\\=\pi (3)^2 (4)\\=36\pi`

B is the correct answer