Keywords: Pentagonal Prism (Heptahedron).svg en A shaded wire-frame pentagonal prism This is a type of heptahedron 2013-11-08 17 52 04 own DEMcAdams cc-zero Uploaded with UploadWizard Set of polyhedra; simple gray Heptahedron Prism Geometry Prisms with 5-gonal base |