# Coloring Polyhedra with Four Colors

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This Demonstration provides exercises of coloring polyhedra with four colors. A proper coloring of a polyhedron colors the faces of so that no two faces that meet along an edge have the same color. According to the four-color theorem, four colors suffice for a planar map or a simply connected polyhedron (one where any closed path on the surface can be contracted to a point).

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Contributed by: Izidor Hafner (September 2014)

Open content licensed under CC BY-NC-SA

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"Coloring Polyhedra with Four Colors"

http://demonstrations.wolfram.com/ColoringPolyhedraWithFourColors/

Wolfram Demonstrations Project

Published: September 4 2014