Explanation:
Volume of a cube = side times side times side. Since each side of a square is the same, it can simply be the length of one side cubed. If a square has one side of 4 inches, the volume would be 4 inches times 4 inches times 4 inches, or 64 cubic inches.
So, given your question,
each side of the cube will be 3
because 3 × 3 × 3 = 27
Hope this helps.