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Metabigyrate rhombicosidodecahedron

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Metabigyrate rhombicosidodecahedron
TypeJohnson
J73J74J75
Faces4x2+3x4 triangles
2+2x2+6x4 squares
4x2+4 pentagons
Edges120
Vertices60
Vertex configuration5.4(3.42.5)
4x2+8x4(3.4.5.4)
Symmetry groupC2v
Dual polyhedron-
Propertiesconvex, canonical
Net

In geometry, the metabigyrate rhombicosidodecahedron is one of the Johnson solids (J74). It can be constructed as a rhombicosidodecahedron with two non-opposing pentagonal cupolae rotated through 36 degrees. It is also a canonical polyhedron.

A Johnson solid is one of 92 strictly convex polyhedra that is composed of regular polygon faces but are not uniform polyhedra (that is, they are not Platonic solids, Archimedean solids, prisms, or antiprisms). They were named by Norman Johnson, who first listed these polyhedra in 1966.[1]

Alternative Johnson solids, constructed by rotating different cupolae of a rhombicosidodecahedron, are:

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  1. ^ Johnson, Norman W. (1966), "Convex polyhedra with regular faces", Canadian Journal of Mathematics, 18: 169–200, doi:10.4153/cjm-1966-021-8, MR 0185507, Zbl 0132.14603.