Question

The volume of a cube is 27 cubic inches. What is the length of an edge? Explain.

Answer 1

3 in

Explanation:

The formula of a volume of a cube:

`V=a^3`

a - length of an edge

We have V = 27 in³. Substitute:

`a^3=27\to a=\sqrt[3]{27}\\\\a=3\ in`