There are five regular polyhedrons. They are called regular because all their faces are congruent regular polygons, and the same number of faces meet at each vertex. They are also called Platonic solids after the Greek philosopher Plato. Tetrahedron Hexahedron Icosahedron Octahedron Dodecahedron Match each net below with a Platonic solid. B. A Choose... B = Choose... C Choose... D Choose... C. A D.