A Polyhedron Compound composed of a Cube and its Dual Polyhedron, the Octahedron. The 14 vertices are given by (, , ), (, 0, 0), (0, , 0), (0, 0, ).

The solid common to both the Cube and Octahedron (left figure) in a cube-octahedron compound is a Cuboctahedron (middle figure). The edges intersecting in the points plotted above are the diagonals of Rhombuses, and the 12 Rhombuses form a Rhombic Dodecahedron (right figure; Ball and Coxeter 1987).

**References**

Ball, W. W. R. and Coxeter, H. S. M. *Mathematical Recreations and Essays, 13th ed.* New York: Dover, p. 137, 1987.

Coxeter, H. S. M. *Introduction to Geometry, 2nd ed.* New York: Wiley, p. 158, 1969.

Cundy, H. and Rollett, A. *Mathematical Models, 3rd ed.* Stradbroke, England: Tarquin Pub., p. 130, 1989.

© 1996-9

1999-05-25