Hosted by The Math Forum

Problem of the Week 898

An Almost-Regular Tetrahedron

Fall 99 Archive || MacPOW Home || Math Forum POWs || Search MacPOW

A tetrahedron with five edges of unit length is inscribed in a unit sphere. How long is the sixth edge?

Source: Nov-Dec 1999 Quantum Magazine

© Copyright 1999 Stan Wagon. Reproduced with permission.

[Privacy Policy] [Terms of Use]

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

© 1994-2008 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Drexel School of Education.