Ii sheeg dhinacyada polytop-ka ee qoraalka.
Context:Geometry ahaan, polytope-ka fudud waa polytope oo dhinacyadiisa oo dhami ay yihiin kuwa fudud. Tusaale ahaan, polyhedronka fudud ee saddexda dhinac ah wuxuu ka kooban yahay oo keliya wajiyo saddex-geesood ah wuxuuna u dhigmaa iyada oo loo marayo theorem-ka Steinitz si loo helo garaafka ugu sarreeya ee ugu sarreeya.  Waxay si topolojiyadeed u yihiin labo polytopes oo fudud. Polytop-yada oo ah kuwa fudud iyo kuwa fudud labadaba waa kuwa fudud ama laba-cabbir badan.
1aad. Polytope-ka fudud waa polytope-ka joomateriga halkaas oo dhinac kasta uu yahay mid fudud. 2aad. Tusaale ahaan, polyhedronka fudud ee saddexda dhinac leh oo leh wejiyo saddex-geesood ah oo keliya ayaa u dhigma shabakadda ugu badan ee siman sida ku xusan mabda'a Steinitz. Saddexaad. Waxay yihiin polytopes fudud oo topologically dual ah. 4. waxay Labada dhinac ee laba dhinac leh ama simplices waa polytopes kuwaas oo labadaba ah kuwa fudud iyo kuwa fudud.