A dodecagram is a star polygon that has twelve vertices. There is 1 regular form: {12/5}. All dodecagrams share the vertices of a dodecagon, which may be regarded as {12/1}. ==Dodecagrams in polyhedra== Dodecagrams can also be incorporated into polyhedra. Below are the three prismatic uniform polyhedra containing dodecagrams. Image:Prism 12-5.png|...