Paragyrate diminished rhombicosidodecahedron

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Paragyrate diminished rhombicosidodecahedron
Paragyrate diminished rhombicosidodecahedron.png
Type Johnson
J76 - J77 - J78
Faces 3x5 triangles
3x5+10 squares
1+2x5 pentagons
1 decagon
Edges 105
Vertices 55
Vertex configuration 10(4.5.10)
10(3.42.5)
3x5+2.10(3.4.5.4)
Symmetry group C5v
Dual polyhedron -
Properties convex
Net
Johnson solid 77 net.png

In geometry, the paragyrate diminished rhombicosidodecahedron is one of the Johnson solids (J77). It can be constructed as a rhombicosidodecahedron with one pentagonal cupola rotated through 36 degrees, and the opposing pentagonal cupola removed.

A Johnson solid is one of 92 strictly convex polyhedra that have regular faces but are not uniform (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]

External links[edit]

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