Pythagoras geometric proof

Help your kid understand Pythagoras' proof with a hands-on experiment! When inserting four similar triangles in the frame in two configurations, the square of the sides adjacent to the right angle is found to occupy the same area as the square of the side opposing the right angle (the hypothenuse). Two different triangle types are included to show this is generally the case.
You need to print one frame and four triangles of each type.
If you have problems with "elephant's foot", i.e. the base of your print tends to bloat a bit, you might need to trim the edges of the triangles a bit.