Grünbaum, Branko2006-07-122006-07-121997Discrete and Computational Geometry vol. 18(1997), pages 13 - 52.0179-5376http://hdl.handle.net/1773/2576A prismatoid is a polyhedron with all vertices in two parallel planes. A polyhedron P is isogonal if all its vertices form one transitivity class under isometric symmetries of P. Although these restrictions appear very severe, there exist many different kinds of isogonal prismatoids. Some general concepts concerning polyhedra are presented, and several classes of isogonal prismatoids are discussed in detail.2065701 bytesapplication/pdfen-USPolyhedraPrismatoidsPolygonsIsogonalArticle