A solid shape in the form of a cube has a volume of 27 cubic inches.
The volume of a cube is derived as the product of all 3 sides, that is,
Volume = L * W * H
Note that the measurement of all sides are the same, which means, L equals W and also equals H. Therefore, the formular can be expressed as
Volume = L * L * L
Volume = L^3
Hence, having been given the volume as 27, the formula now becomes
27 = L^3
Add the cube root sign to both sides of the equation and you now have
3 = L
Therefore the measure of one side is equal to 3 inches.