The uniform polyhedron and Wenninger model whose dual polyhedron is the rhombicosacron. It has Wythoff symbol . Its faces are . The circumradius for unit edge length is

Wenninger, M. J. "Rhombicosahedron." Model 96 in Polyhedron Models. Cambridge, England: Cambridge University Press, pp. 149-150, 1971.

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Weisstein, Eric W. "Rhombicosahedron." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Rhombicosahedron.html