Pythagorean theorem

On the circular wooden board placed vertically on the wall, there are three Plexiglas boxes attached to the dashboard in the shape of a right triangle inequilateral. They are interconnected. Circle situated on the wall of the model, the medium flowing in the squares of the sides of a right triangle illustrates to visitor understanding of the Pythagorean theorem.
Dimensions (cm): 120 x 120 x 10