Platonic solid

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In Euclidean geometry, a Platonic solid is a regular, convex polyhedron wi congruent faces o regular polygons an the same nummer o faces meetin at each vertex. Five solids meet those criteria, an each is named efter its nummer o faces.

Tetrahedron
(fower faces)
Cube or hexahedron
(sax faces)
Octahedron
(aicht faces)
Dodecahedron
(twelve faces)
Icosahedron
(twenty faces)
Tetrahedron.svg

(Animation)

Hexahedron.svg

(Animation)

Octahedron.svg

(Animation)

Dodecahedron.svg

(Animation)

Icosahedron.svg

(Animation)

Geometers have studied the mathematical beauty an symmetry o the Platonic solids for thoosands o years. Thay are named for the auncient Greek filosopher Plato who theorized in his dialogue, the Timaeus, that the classical elements wur made o these regular solids.[1]

References[eedit | eedit soorce]