Ngitshele ukuthi yiziphi izici ze-polytopes kusuka kumbhalo onikeziwe
Context:E-geometry, i-polytope elula i-polytope enezici zonke ezilula. Ngokwesibonelo, i-polyhedron elula enobukhulu obuthathu iqukethe ubuso obunxantathu kuphela futhi ihambelana ne-theorem kaSteinitz ku-graph ye-planar enkulu.  Ngokwe-topology ziyi-dual kuma-polytopes alula. Ama-polytopes alula futhi alula womabili angama-simplices noma ama-polygon anezinhlangothi ezimbili.
1. Izinkomo I-polytope ye-simplicial i-polytope e-geometry lapho uhlangothi ngalunye luyi-simplice. 2. Izingelosi Njengesibonelo, i-polyhedron elula enobukhulu obuthathu enobuso obunxantathu kuphela ihambelana nenethiwekhi enkulu yeplanar ngokusho kwesisho sikaSteinitz. 3. Izindaba Ezinhle Ziyi-polytopes elula ene-topological dual. 4. Izidakamizwa Ama-polygon anezinhlangothi ezimbili noma ama-simplices angama-polytopes alula futhi alula.