Triangle with extra area??? Four puzzle pieces; two right triangles and two six sided polygons with all right angles. The two six sided polygons can form a perfect 12 by 12 square as shown figure1. They are put together in two different ways to create triangular shapes of exactly the same height and width (fig 1 & 2). BUT, some extra uncovered area, a 4 by 4 square, shows up in fig 2! *Where does this extra space come from??? *You can show you know the solution with one descriptive word. Without a drawing function it's hard to show in 'text drawing' but with the dimensions given above and figures below it should be easy to make four paper cutouts to help solve if needed.