Octagrammic crossed-antiprism

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

Wikimedia Commons has media related to Antiprisms.
  • Weisstein, Eric W. "Antiprism". MathWorld.
  • Paper models of prisms and antiprisms


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