The faces of this model are those of a triangular prism with square pyramids replacing all three square sides. Its faces total fourteen equilateral triangles. On Berman's models of regular-faced ...

Besides the regular and semiregular solids, there are just ninety-two other convex polyhedra with regular faces. In 1966, the American mathematician Norman W. Johnson, a student of H.S.M. Coxeter at ...

A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...