Edges 90 Symmetry group D5d | Vertices 50 | |
Type Johnson
J79 - J80 - J81 Faces 10 triangles
2x10 squares
10 pentagons
2 decagons Vertex configuration 20(4.5.10)
10+20(3.4.5.4) |
In geometry, the parabidiminished rhombicosidodecahedron is one of the Johnson solids (J80).
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.
It can be constructed as a rhombicosidodecahedron with two opposing pentagonal cupolae removed. Related Johnson solids are the diminished rhombicosidodecahedron (J76) where one cupola is removed, the metabidiminished rhombicosidodecahedron (J81) where two non-opposing cupolae are removed and the tridiminished rhombicosidodecahedron (J83) where three cupolae are removed.
References
Parabidiminished rhombicosidodecahedron Wikipedia(Text) CC BY-SA