Question

What is the side length of a cube that has a volume of 729 in.³

Answer 1

V = a^3
729 = a^3 
9^3 = a^3
9 = a

answer. side length = 9 in

Answer 2

The volume formula of a cube is v=a³
Since v=729, cube root it.
v=$\sqrt[3]{729}$
$\sqrt[3]{279} = 9$
Each side of the cube is 9 in