Small dodecahemicosahedron

Small dodecahemicosahedron
Type Uniform star polyhedron
Elements F = 22, E = 60
V = 30 (χ = −8)
Faces by sides 12{5/2}+10{6}
Coxeter diagram
Wythoff symbol 5/3 5/2 | 3 (double covering)
Symmetry group Ih, [5,3], *532
Index references U62, C78, W100
Dual polyhedron Small dodecahemicosacron
Vertex figure
6.5/2.6.5/3
Bowers acronym Sidhei

In geometry, the small dodecahemicosahedron (or great dodecahemiicosahedron) is a nonconvex uniform polyhedron, indexed as U62. It has 22 faces (12 pentagrams and 10 hexagons), 60 edges, and 30 vertices.[1] Its vertex figure is a crossed quadrilateral.

3D model of a small dodecahemicosahedron

It is a hemipolyhedron with ten hexagonal faces passing through the model center.

Related polyhedra edit

Its convex hull is the icosidodecahedron. It also shares its edge arrangement with the dodecadodecahedron (having the pentagrammic faces in common), and with the great dodecahemicosahedron (having the hexagonal faces in common).

 
Dodecadodecahedron
 
Small dodecahemicosahedron
 
Great dodecahemicosahedron
 
Icosidodecahedron (convex hull)

Gallery edit

 
Traditional filling
 
Modulo-2 filling

See also edit

References edit

  1. ^ Maeder, Roman. "62: small dodecahemicosahedron". MathConsult.

External links edit