Heptagonal antiprism
| Uniform Heptagonal antiprism | |
|---|---|
 | |
| Type | Prismatic uniform polyhedron |
| Elements | F = 16, E = 28 V = 14 (χ = 2) |
| Faces by sides | 14{3}+2{7} |
| Schläfli symbol | s{2,14} sr{2,7} |
| Wythoff symbol | | 2 2 7 |
| Coxeter-Dynkin |      |
| Symmetry group | D7d, [2+,14], (2*7), order 28 |
| Rotation group | D7, [7,2]+, (722), order 14 |
| References | U77(e) |
| Dual | Heptagonal trapezohedron |
| Properties | convex |
 Vertex figure 3.3.3.7 | |
In geometry, the heptagonal antiprism is the fifth 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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External links
- Virtual Reality Polyhedra www.georgehart.com: The Encyclopedia of Polyhedra
- VRML model
- Conway Notation for Polyhedra Try: "A7"