es ▁The ▁t etra hed ral ▁cup ola ▁can ▁be ▁s lic ed ▁off ▁from ▁a ▁run cin ated ▁ 5 - cell , ▁on ▁a ▁hyper plane ▁parallel ▁to ▁a ▁t etra hed ral ▁cell . ▁The ▁cub oct ah ed ron ▁base ▁passes ▁through ▁the ▁center ▁of ▁the ▁run cin ated ▁ 5 - cell , ▁so ▁the ▁T etra hed ral ▁cup ola ▁contains ▁half ▁of ▁the ▁t etra hed ron ▁and ▁tri angular ▁pr ism ▁cells ▁of ▁the ▁run cin ated ▁ 5 - cell . ▁The ▁cup ola ▁can ▁be ▁seen ▁in ▁A 2 ▁and ▁A 3 ▁C ox eter ▁plane ▁orthogonal ▁projection ▁of ▁the ▁run cin ated ▁ 5 - cell : ▁ ▁See ▁also ▁ ▁T etra hed ral ▁py ram id ▁( 5 - cell ) ▁ ▁References ▁ ▁External ▁links ▁ ▁Seg ment och ora : ▁t et aco , ▁t et ▁|| ▁co , ▁K - 4 . 2 3 ▁▁ ▁Category : 4 - poly top es <0x0A> </s> ▁Chris ▁Con nel ly ▁( born ▁ 1 9 5 7 ) ▁is ▁an ▁American ▁sports ▁and ▁entertain ment ▁rep orter ▁who ▁currently ▁works ▁for ▁ESP N ▁as ▁a ▁contrib utor ▁to ▁its ▁E : 6 0 ▁new sm ag azine . ▁He ▁was ▁also ▁the ▁inter im ▁editor - in - ch ief ▁of ▁Grant land . com , ▁replacing ▁Bill ▁Sim m ons , ▁before ▁ESP N ▁sh utter ed ▁the ▁site ▁on ▁October ▁ 3 0 , ▁ 2 0