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Introduction

An icosahedron is a geometric solid consisting of twenty faces. Each face is an equilateral triangle and every vertex of the icosahedron is formed by five triangular faces that come together. Figure 1 shows an icosahedron. This document describes how to build an icosahedron as a class project. The size is up to you. During the summer of 1994, students in a summer enrichment program at the Geometry Center built a "world record" icosahedron with edge lengths just under 37 inches.


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Author: Frederick J. Wicklin <fjw@geom.umn.edu>
Comments to: webmaster@geom.umn.edu
Created: Summer 1994 --- Last modified: Jul 21 1996
Copyright © 1994-1996 by The Geometry Center All rights reserved.