Inverted Snub Dodecadodecahedron

$\begin{figure}\begin{center}\BoxedEPSF{U60.epsf scaled 700}\end{center}\end{figure}$

The Uniform Polyhedron $U_{60}$ whose Dual Polyhedron is the Medial Inverted Pentagonal Hexecontahedron. It has Wythoff Symbol $\vert\,2\,{\textstyle{5\over 3}}\,5$ . Its faces are $12\{{\textstyle{5\over 3}}\}+60\{3\}+12\{5\}$ . It has Circumradius for unit edge length of

$\begin{displaymath} R\approx 0.8516302. \end{displaymath}$

References

Wenninger, M. J. Polyhedron Models. Cambridge, England: Cambridge University Press, pp. 180-182, 1989.