Question

The radius of a cylindrical water tank is4.5ft , and its height is12ft . What is the volume of the tank? Use the value for , and round your answer to the nearest whole number. Be sure to include the correct unit in your answer.

Answer 1

`763 ft^3` or 763 cubic feet.

Explanation:

The tank is cylindrical and the volume of a cylinder is given as:

`V = \pi r^2h`

where r = radius and h = height

The radius, r, of the tank is 4.5 ft and the height, h, of the tank is 12 ft.

Therefore, the volume of the cylindrical water tank is:

`V = \pi * 4.5^2 * 12\\V = 763.407 ft^3`

Approximating to whole number, the volume of the tank is
`763 ft^3` or 763 cubic feet.