Rhombidodecadodecahedron
The Uniform Polyhedron 
whose Dual Polyhedron is the Medial Deltoidal Hexecontahedron. It hasSchläfli Symbol r
and Wythoff Symbol
. Its faces are 
. The Circumradius for unit edge length is
References
Wenninger, M. J. Polyhedron Models. Cambridge, England: Cambridge University Press, pp. 116-117, 1989.
- Oblate Spheroidal Wave Function
- Oblate Spheroid Geodesic
- Oblique Angle
- Oblong Number
- Obstruction
- Obtuse Angle
- Obtuse Triangle
- Ochoa Curve
- Octacontagon
- Octadecagon
- Octagon
- Octagonal Number
- Octagram
- Octahedral Graph
- Octahedral Group
- Octahedral Number
- Octahedron
- Octahedron 5-Compound
- Octahemioctacron
- Octahemioctahedron
- Octakaidecagon
- Octal
- Octant
- Octatetrahedron
- Octic Surface