Disphenoids, an infinite set of tetrahedra comprised of congruent non-regular triangles: four sides. That is a less symmetric tetrahedron compared to the Platonic tetrahedron, but still sufficiently symmetrical to get confront-transitive. A standard set of polyhedral dice in several hues. They encompass the 5 Platonic solids, in addition to a https://aabyee444fzu9.wikinarration.com/user