Question

A cube has a volume of 125 cubic inches. What is the length of each edge?

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(Needs to be in inches)

Answer 1

So the length of the edge of a cube with a volume of 125 is 5 inches

Explanation:

All the edges of a cube have the same length, and the volume of a cube is the length of an edge taken to the third power.

So if we take the edge of the cube to be of length x, then:

Volume=x3

125=x3

5=x

Answer 2

The formula for the volume of a cube is V = a^3.

We know the volume is 125 cubic inches.

125 = a^3

Take the third square root

5 = a

The length of each edge is 5 inches