Pentagonal Rotunda
Pentagonal Rotunda is a Johnson solid, with 20 vertices, 35 edges and 17 faces, symmetry group C5v of order 10.
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convex johnson
Properties
- Vertices
- 20
- Edges
- 35
- Faces
- 17
- Convex
- yes
- Density
- 1
- Symmetry
- C5v
- Orbifold
- *55
- Symmetry order
- 10
- Volume
- {'value': 6.91776296812469, 'exact': '(45+17*sqrt(5))/12', 'source': 'pslq'}
- Surface area
- {'value': 22.3472002653941, 'exact': None}
- Inradius
- [{'face': '{10}', 'exact': 'sqrt(250+110*sqrt(5))/40', 'value': 0.556758182205803}]