Cleave Books Pentominoes Spacefilling Problems 1
1. 
On the right is shown how 3 pentominoes (P, U and V) can be put together to fill a rectangle which covers an area of 15 squares.
Find at least two other ways of filling a rectangle of the same size with three (different) pentominoes. 

2. 
On the right is shown how 4 pentominoes (L, P, T and Y) can be put together to fill a rectangle which covers an area of 20 squares.
Find at least two other ways of filling a rectangle of the same size with four (different) pentominoes. 

3. 
On the right is shown how 5 pentominoes (L, P, T, U and X) can be put together to fill a rectangle which covers an area of 25 squares.
Find at least two other ways of filling a rectangle of the same size with five (different) pentominoes. 

