Answer:
A square does not have volume because it has no depth. A cube has volume. The formula to find the volume of a cube is length x width x height. Because all sides are equal in a cube, you can also cube the length of one side.
Imagine a cube whose sides are all 2cm.
Volume = 2cm x 2cm x 2cm = 8cm3
or
Volume = (2cm)3 = 8cm3.