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Great rhombidodecahedron

Polyhedron with 42 faces From Wikipedia, the free encyclopedia

Great rhombidodecahedron
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In geometry, the great rhombidodecahedron is a nonconvex uniform polyhedron, indexed as U73. It has 42 faces (30 squares, 12 decagrams), 120 edges and 60 vertices.[1] Its vertex figure is a crossed quadrilateral.

Great rhombidodecahedron
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TypeUniform star polyhedron
ElementsF = 42, E = 120
V = 60 (χ = 18)
Faces by sides30{4}+12{10/3}
Coxeter diagram (with extra double-covered triangles)
(with extra double-covered pentagrams)
Wythoff symbol2 5/3 (3/2 5/4) |
Symmetry groupIh, [5,3], *532
Index referencesU73, C89, W109
Dual polyhedronGreat rhombidodecacron
Vertex figureThumb
4.10/3.4/3.10/7
Bowers acronymGird
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3D model of a great rhombidodecahedron
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It shares its vertex arrangement with the truncated great dodecahedron and the uniform compounds of 6 or 12 pentagonal prisms. It additionally shares its edge arrangement with the nonconvex great rhombicosidodecahedron (having the square faces in common), and with the great dodecicosidodecahedron (having the decagrammic faces in common).

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Nonconvex great rhombicosidodecahedron
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Great dodecicosidodecahedron
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Great rhombidodecahedron
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Truncated great dodecahedron
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Compound of six pentagonal prisms
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Compound of twelve pentagonal prisms
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Traditional filling
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Modulo-2 filling


See also

References

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