A Polyhedron Compound composed of 5 Tetrahedra. Two tetrahedron 5-compounds of opposite Chirality combine to make a Tetrahedron 10-Compound. The following diagram shows pieces which can be assembled to form a tetrahedron 5-compound (Cundy and Rollett 1989).

**References**

Ball, W. W. R. and Coxeter, H. S. M. *Mathematical Recreations and Essays, 13th ed.* New York: Dover, p. 135, 1987.

Cundy, H. and Rollett, A. *Mathematical Models, 3rd ed.* Stradbroke, England: Tarquin Pub., pp. 139-141, 1989.

Wang, P. ``Renderings.'' http://www.ugcs.caltech.edu/~peterw/portfolio/renderings/.

Wenninger, M. J. *Polyhedron Models.* New York: Cambridge University Press, p. 44, 1989.

© 1996-9

1999-05-26