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Platonic solids

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Properties of solids index
Platonic solids diagram
The volumes of the tetrahedron, cube, octahedron, dodecahedron and icosahedron are calculated by known formulae.
Side length

Tetrahedron volume
Cube volume
Octahedron volume
Dodecahedron volume
Icosahedron volume
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The Platonic solids are the only five solids in which all faces are identical regular polygons, interchangable by symmetry operations.