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Type Johnson
J89 - J90 - J91
Faces 4+2x8 triangles
4 squares
Edges 38
Vertices 16
Vertex configuration 4(32.42)
Symmetry group D2d
Dual polyhedron -
Properties convex
Johnson solid 90 net.png

In geometry, the disphenocingulum is one of the Johnson solids (J90). It is one of the elementary Johnson solids that do not arise from "cut and paste" manipulations of the Platonic and Archimedean solids.

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 .