(also Platonic body)
One of five regular solids (a tetrahedron, cube, octahedron, dodecahedron, or icosahedron).
- Kepler connected the planetary orbits with the five regular polyhedra, or Platonic solids.
- His geometrical inclinations led him to propose that these particles had regular, mathematical shapes: the polyhedra called regular Platonic solids.
- If each face is an equilateral triangle, the result is a regular tetrahedron, one of the five Platonic solids.
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