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Small icosihemidodecahedron

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Small icosihemidodecahedron
Type Uniform star polyhedron
Elements F = 26, E = 60
V = 30 (χ = −4)
Faces by sides 20{3}+6{10}
Coxeter diagram (double covering)
Wythoff symbol 3/2 3 | 5 (double covering)
Symmetry group Ih, [5,3], *532
Index references U49, C63, W89
Dual polyhedron Small icosihemidodecacron
Vertex figure
3.10.3/2.10
Bowers acronym Seihid

In geometry, the small icosihemidodecahedron is a nonconvex uniform polyhedron, indexed as U49. Its vertex figure is a crossed quadrilateral.

It is a hemipolyhedron with 6 decagonal faces passing through the model center.

Its shares its edge arrangement with the icosidodecahedron (its convex hull, having the triangular faces in common), and with the small dodecahemidodecahedron (having the decagonal faces in common).


Icosidodecahedron

Small icosihemidodecahedron

Small dodecahemidodecahedron

See also

  • Weisstein, Eric W. "Small icosihemidodecahedron". MathWorld.
  • Uniform polyhedra and duals

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