- In geometry, a Platonic solid is a convex, regular polyhedron in three-dimensional Euclidean space. Being a regular polyhedron means that the faces are congruent (identical in shape and size) regular polygons (all angles congruent and all edges congruent), and the same number of faces meet at each vertex.
- Plato (Wikipedia)
Plato (/ˈpleɪtoʊ/ PLAY-toe; Greek: Πλάτων Plátōn; 428/427 or 424/423 – 348 BC) was an ancient Greek philosopher born in Athens during the Classical period.