Octagonal antiprism
| Uniform Octagonal antiprism | |
|---|---|
 | |
| Type | Prismatic uniform polyhedron |
| Elements | F = 18, E = 32 V = 16 (χ = 2) |
| Faces by sides | 16{3}+2{8} |
| Schläfli symbol | s{2,16} sr{2,8} |
| Wythoff symbol | | 2 2 8 |
| Coxeter-Dynkin |      |
| Symmetry group | D8d, [2+,16], (2*8), order 32 |
| Rotation group | D8, [8,2]+, (822), order 16 |
| References | U77(f) |
| Dual | Octagonal trapezohedron |
| Properties | convex |
 Vertex figure 3.3.3.8 | |
In geometry, the octagonal antiprism is the 6th in an infinite set of antiprisms formed by an even-numbered sequence of triangle sides closed by two polygon caps.
If faces are all regular, it is a semiregular polyhedron.
See also
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | n |
|---|---|---|---|---|---|---|---|---|---|---|---|
| s{2,4} sr{2,2} |
s{2,6} sr{2,3} |
s{2,8} sr{2,4} |
s{2,10} sr{2,5} |
s{2,12} sr{2,6} |
s{2,14} sr{2,7} |
s{2,16} sr{2,8} |
s{2,18} sr{2,9} |
s{2,20} sr{2,10} |
s{2,22} sr{2,11} |
s{2,24} sr{2,12} |
s{2,2n} sr{2,n} |
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| As spherical polyhedra | |||||||||||
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External links
- Weisstein, Eric W., "Antiprism", MathWorld.
- Octagonal Antiprism -- Interactive Polyhedron Model
- Virtual Reality Polyhedra www.georgehart.com: The Encyclopedia of Polyhedra
- VRML model
- Conway Notation for Polyhedra Try: "A8"
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