Platonic solid
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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 regular polygons, and the same number
Kepler's Platonic solid model of the Solar System from Mysterium Cosmographicum (1596)
A set of polyhedral dice
Tetrahedron in Bottrop
Solar cube at Discovery Cube Orange County
Regular dodecahedron
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A regular dodecahedron or pentagonal dodecahedron is a dodecahedron composed of regular pentagonal faces, three meeting at each vertex. It is one of the Platonic solids, described in Plato's dialogues
Platonic solid
…only five such polyhedra: a regular tetrahedron (four triangular faces), a cube (six square faces), a regular octahedron (eight triangular faces), a regular dodecahedron (twelve pentagonal faces), and a regular icosahedron (twenty triangular faces). Geometers have studied the Platonic solids for thousands of years. They…
Regular dodecahedron painting by Johannes Kepler
Roman dodecahedron
The coccolithophore Braarudosphaera bigelowii covered with a coccosphere formed of twelve pentaliths