Drexel dragonThe Math Forum

The Math Forum Internet Mathematics Library

Punctured Polyhedra

Library Home || Full Table of Contents || Library Help

Visit this site: http://www.maa.org/mathland/mathtrek_6_19_00.html

Author:Ivars Peterson (MathTrek)
Description: A tetrahedron has four triangular faces, four vertices, and six edges. When a vertex of one tetrahedron pierces the face of a second tetrahedron it forms a new, more complicated polyhedron: one triangular face has a triangular "hole" where the face was pierced. Mathematicians describe such a punctured face as being "multiply connected." Several years ago, mathematician John H. Conway wondered whether a polyhedron could have such a polygonal hole passing through each and every face and remain a polyhedron. He coined the term "holyhedron" to describe this form, should it exist... Jade Vinson's surprising solution is now slated for publication in the journal Discrete and Computational Geometry.

Levels: High School (9-12), College
Languages: English
Resource Types: Problems/Puzzles, Articles
Math Topics: Computational Geometry, Higher-Dimensional Geometry, Polyhedra

[Privacy Policy] [Terms of Use]

Home || The Math Library || Quick Reference || Search || Help

© 1994- The Math Forum at NCTM. All rights reserved.