Building a Parallelepiped: Consider a standard set of 12 three-dimensional pentominoes where each pentomino now has a third dimension (a thickness of 1 unit). Use all 12 pentominoes to build a parallelepiped of dimensions 3 x 4 x 5. Clearly indicate your construction procedure Building a Parallelepiped: Consider a standard set of 12 three-dimensional pentominoes where each pentomino now has a third dimension (a thickness of 1 unit). Use all 12 pentominoes to build a parallelepiped of dimensions 3 x 4 x 5. Clearly indicate your construction procedure