A dodecahedron is a three-dimensional shape with 12 faces. The most common dodecahedron ( regular dodecahedron ) has regular pentagons for all 12 faces. There are other types of dodecahedron are made ...

Mathematicians have spent more than 2,000 years dissecting the structure of the five Platonic solids—the tetrahedron, cube, octahedron, icosahedron, and dodecahedron—but there’s still a lot we don’t ...