Question 166700
A Platonic solid is a solid all of whose face are regular and congruent polygons.
There are five of these:
A Tetrahedron. Four faces, each an equilateral triangle.
A Hexahedron (Cube). Six faces, each a square.
An Octahedron. Eight faces, each an equilateral triangle.
A Dodecahedron. Twelve faces, each a regular pentagon.
An Icosahedron. Twenty faces, each an equilateral triangle.