Pentagonal antiprism
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Uniform Pentagonal antiprism
Type	Prismatic uniform polyhedron
Elements	F = 12, E = 20 V = 10 (χ = 2)
Faces by sides	10{3}+2{5}
Schläfli symbol	s{2,5}
Wythoff symbol	| 2 2 5
Coxeter-Dynkin
Symmetry	D5d
References	U77(c)
Dual	Pentagonal trapezohedron
Properties	convex
Vertex figure 3.3.3.5

In geometry, the pentagonal antiprism is the third in an infinite set of antiprisms formed by an even-numbered sequence of triangle sides closed by two polygon caps.

If faces are all regular, it is a semiregular polyhedron. It can also be considered as a parabidiminished icosahedron.

See also

• Set of antiprisms
• Octahedron Triangle-capped antiprism
• Square antiprism
• Hexagonal antiprism
• Octagonal antiprism

External links

• Eric W. Weisstein, Antiprism at MathWorld.
• Pentagonal Antiprism: Interactive Polyhedron Model
• Virtual Reality Polyhedra www.georgehart.com: The Encyclopedia of Polyhedra
  • VRML model
  • Conway Notation for Polyhedra Try: "A5"

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