EntityQ7840131· pop 6· linked from 9 articlestriangular bifrustumSign in to savepolyhedronConnectionsgeometryEntitytriangleEntityInternational Standard Book NumberEntitydigital object identifierEntitytrapezoidEntitytetrahedronEntityQ180686EntitybibcodeEntityQ118398EntityvertexEntityQ229883EntityoctahedronEntityedgeEntityQ22908627EntityfaceEntityfrustumEntitysymmetry groupEntitydual polyhedronEntitynetEntitytriangular bipyramidEntityCategoriesPolyhedra