Guteranya: Impinga Hexagon Icya karindwi Inzu
Soma: Impinga, Boneka, Tumenyereye.
Vertex cyangwa Vertex yerekana aho nuburyo imbaraga zabaye mubuzima bwambere zizagaragara muri ubu buzima. Inzu ya karindwi yerekana Ubukwe n'Ubufatanye. Muri ibyo bibazo urakora kandi ugahora uhindura ibintu neza hamwe nubutsinzi. Ibindi