Enneagonal Antiprism
Enneagonal Antiprism is an antiprism, with 18 vertices, 36 edges and 20 faces, symmetry group D9d of order 36.
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antiprism chiral-family convex prism-family
Properties
- Vertices
- 18
- Edges
- 36
- Faces
- 20
- Convex
- yes
- Density
- 1
- Symmetry
- D9d
- Orbifold
- 2*9
- Symmetry order
- 36
- Dual
- enneagonal-trapezohedron
- Volume
- {'value': 5.43973552989304, 'exact': None}
- Surface area
- {'value': 20.157877021605692, 'exact': None}
- Circumradius
- {'value': 1.5240455512698408, 'exact': None}
- Inradius
- [{'face': '{3}', 'exact': None, 'value': 1.4104543626122967}, {'face': '{9}', 'exact': None, 'value': 0.430763043612308}]
- Midradius
- {'value': 1.439692620785907, 'exact': None}