# The Archimedean Anti-Prisms

The infiniate set of semi-regular anti-prisms.
These are regular-based with equilateral trinangular sides. For `n`
∈ {4,5,6,7,8,...} we obtain
a semi-regular anti-prism whose base is a regular `n`-gon.
For `n` = 3 we obtain the regular
octahedron. In these anti-prisms, three equilateral
triangles and an `n`-gon meet at each vertex.

Vertex Symbol |
Wythoff Symbol |
No. of Vertices |
No. of Edges |
No. of Faces |
Symmetry Group |
Dual Polyhedron |

3.3.3.n |
| 2 2 n |
2n |
4n |
2n+2 |
D_{4n} |
n-Trapezohedron |

See Also: Archimedean Prisms.