Octagonal bipyramid

Type| bipyramid
Faces| 16 triangles
Edges| 24
Vertices| 10
Schläfli symbol| { } + {8}
Coxeter diagram|

Symmetry group| D8h, [8,2], (*228), order 32
Rotation group| D8, [8,2]+, (228), order 16
Dual polyhedron| octagonal prism
Face configuration| V4.4.8
Properties| convex, face-transitive

The octagonal bipyramid is one of the infinite set of bipyramids, dual to the infinite prisms. If an octagonal bipyramid is to be face-transitive, all faces must be isosceles triangles. 16-sided dice are often octagonal bipyramids.

## Images

It can be drawn as a tiling on a sphere which also represents the fundamental domains of [4,2], *422 symmetry:

## Related polyhedra

## External links

* Weisstein, Eric W.. "Dipyramid". http://mathworld.wolfram.com/Dipyramid.html.
* Virtual Reality Polyhedra The Encyclopedia of Polyhedra
* VRML models <8>
* Conway Notation for Polyhedra Try: dP8

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