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Octagrammic crossed-antiprism

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Octagrammic crossed-antiprism
TypeUniform polyhedron
Faces2 {8/3}
16 {3}
Edges32
Vertices16
Vertex configuration8/5.3.3.3
Wythoff symbol|2 2 8/5
Schläfli symbols{2,16/5}
Coxeter diagram
Symmetry groupD8d, [2+,16],(2*8), order 32
Dual polyhedronOctagrammic concave deltohedron
Propertiesnonconvex
Vertex figure

In geometry, the octagrammic crossed-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.

See also

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