Origami is so interesting because it can be used to create any polyhedron from a flat sheet of paper only by folding. A polyhedron is a 3D surface composed of polygons, which are 2D planar surfaces whose edges are straight lines. In order to create a polyhedron with paper, you must first fold a piece of paper into a rectangle. Once this is done, triangulation should take place. A zigzag pattern is created through this triangulation, parallel to the edge shared with the next triangle and starting at the opposite corner. A mountain fold, or valley fold, is then used to fold the strip back on itself. The path is created by using this fold and folding the back layer to the required level.