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There exist polyhedra which can be plaited (braided). Examples include a plaited cube and plaited icosahedron illustrated above (Pargeter 1959, Wells 1991). In the above ...

Sprague (1963) considered the problem of "rolling" five cubes, each which an upright letter "A" on its top, on a chessboard. Here "rolling" means the cubes are moved from ...

An enneacontahedron is a 90-faced polyhedron.

The difference between the sum of face angles A_i at a polyhedron vertex of a polyhedron and 2pi, delta=2pi-sum_(i)A_i.

The edge of a polygon or face of a polyhedron are sometimes called sides.

The pentagrammic dipyramid is the dual polyhedron of the pentagrammic prism U_(78).

The dual polyhedron of the tetrahemihexahedron U_4 and Wenninger dual W_(67).

A polyhedron compound of the great icosahedron and its dual great stellated dodecahedron most easily constructed by adding the polyhedron vertices of the former to the latter.

The midsphere, also called the intersphere, reciprocating sphere, or inversion sphere, is a sphere with respect to which the polyhedron vertices of a polyhedron are the ...

The dual polyhedron of the rhombicosahedron U_(56) and Wenninger dual W_(96).