The Uniform Polyhedron , also called the Great Inverted Retrosnub Icosidodecahedron, whose
Dual is the Great Pentagrammic Hexecontahedron. It has Wythoff Symbol
. Its faces are
. For unit edge length, it has Circumradius

where is the smaller Negative root of

with the Golden Mean.

**References**

Wenninger, M. J. *Polyhedron Models.* Cambridge, England: Cambridge University Press, pp. 189-193, 1989.

© 1996-9

1999-05-25