Nkọwapụta ： Nkpuru osisi hex dị arọ ma saa mbara karịa (gwụchara) mkpụrụ hex nke otu nha, nke mere ka ha sie ike karịa
atụnyere-graded akụ. Ike ha gbakwunyere sitere na ntinye aka nke otutu, nke bu n'ihi okpukpu ha, na iguzogide dilation (mgbasa ma ọ bụ ịgbatị) n'ihi nnukwu ha. Nnukwu ibu hex nut na-abawanye na-amịpụta nnukwu ibu na-arụ ọrụ ma mee ka ọ dịkwuo mma. Hex dị mkpụmkpụ maka hegagon, nke pụtara na ha nwere akụkụ isii. A makwaara ha dị ka: mkpụrụ dị arọ. Enwere ike iji mkpochi mkpochi eji mkpo hex dị arọ.
