Set of pyramidal right n-gonal frustums Examples: right pentagonal and square frustums (n = 5 and n = 4) Faces n isosceles trapezoids, 2 regular n-gons Edges 3n Vertices 2n Symmetry group Cnv, [1,n], (*nn) Dual polyhedron convex asymmetric right n-gonal bipyramid Properties convex Net Example: net of right trigonal frustum (n = 3)