Octagrammic antiprism

In geometry, the octagrammic antiprism is one in an infinite set of nonconvex antiprisms formed by triangle sides and two regular star polygon caps, in this case two octagrams.

Octagrammic antiprism
Type	Uniform polyhedron
Faces	2 {8/3} 16 {3}
Edges	32
Vertices	16
Vertex configuration	8/3.3.3.3
Wythoff symbol	|2 2 8/3
Schläfli symbol	s{2,16/3}
Coxeter diagram
Symmetry group	D8d, [2+,16], (2*8), order 32
Dual polyhedron	Octagrammic deltohedron
Properties	nonconvex
Vertex figure

See also

• Prismatic uniform polyhedron
• Octagrammic crossed-antiprism

External links

• Weisstein, Eric W. "Antiprism". MathWorld.
• Paper models of prisms and antiprisms