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A Teacher's Guide to Building the Icosahedron as a Class Project

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Article by Frederick J. Wicklin


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. 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 University of Minnesota's Geometry Center built a "world record" icosahedron with edge lengths just under 37 inches.


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