Can 5 tetrominoes make a rectangle?
Can 5 tetrominoes make a rectangle?
However, all three sets of tetrominoes can fit rectangles with holes: All 5 free tetrominoes fit a 7×3 rectangle with a hole.
However, all three sets of tetrominoes can fit rectangles with holes: All 5 free tetrominoes fit a 7×3 rectangle with a hole.
