Pentagrammic antiprism

Uniform Pentagrammic antiprism
Type Prismatic uniform polyhedron
Elements F = 12, E = 20
V = 10 (χ = 2)
Faces by sides 10{3}+2{5/2}
Schläfli symbol s{2,5/2}
Wythoff symbol | 2 2 5/2
Coxeter-Dynkin
Symmetry D5d, [10,2+], (2*5)
Index references U79(a)
Dual Pentagrammic trapezohedron
Properties nonconvex

Vertex figure
3.3.3.5/2

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

This polyhedron is identified with the indexed name U79 as a uniform polyhedron.

An alternative representation with hollow centers to the pentagrams.

See also

External links