TRIGONAL TRAPEZOHEDRON

Trigonal trapezohedron
Trigonal trapezohedron ''Click on picture for large version.''
Type	trapezohedra
Faces	6 rhombi
Edges	12
Vertices	8
Face configuration	3,3,3,3
Symmetry group	''D''''3d''
Dual polyhedron	trigonal antiprism
Properties	convex, face-transitive

The 'trigonal trapezohedron' or 'deltohedron' is the first in an infinite series of face-uniform polyhedra which are dual polyhedron to the antiprisms. It has six faces which are congruent rhombi.
Trigonal trapezohedrons are a subset of the rhombohedrons. The cube is a special case with square faces.