The Rhombidodecadodecahedron

A non-convex semi-regular polyhedron.

The rhombidodecadodecahedron is one of the stellated archimedians.

Vertex
Symbol
Wythoff
Symbol
No. of
Vertices
No. of
Edges
{5/2}
Faces
{4}
Faces
{5}
Faces
Symmetry
Group
5/2.4.5.4 5/2 5 | 2 60 120 12 30 12 A5×C2
Edge
Inter-Radius
= ??   Edge
Circum-Radius
= ??
Edge
In. Dodecahedral Edge
= 13 + 5root5
22
  Edge
Ex. Dodecahedral Edge
= 9 + 5root5
22
  Edge
Long Rhombic Diagonal
= 5 + root5
10