Question

A water tank is in the shape of a cylinder with a height of 21 feet and a diameter of 8 feet. What is the volume, in cubic feet, of the water tank?

Answer 1

1,055.04

Explanation:

Volume equals pi times radius squared times the hight.

You first calculate what the radius will be by dividing the diameter by two and then you procede to multiply the radius to a power of two which is the equvialent as multiplying it to the base number and then you multiply the then squared radius to pi and lastly multiply it by the hight and you have your answer.

`\pi * (8x^(2)) * 21 \\\pi * (4x^(2)) * 21\\\pi * 16 * 21\\50.24 *21\\=1,055.04`