Kwambuka: Impinga Hexagon Icyenda Inzu
Soma: Impinga, Boneka, Ishirahamwe.
Vertex cyangwa Vertex yerekana aho nuburyo imbaraga zabaye mubuzima bwambere zizagaragara muri ubu buzima. Inzu ya cyenda yerekana imyifatire yubuzima ningendo ndende. Muri ibyo bibazo urakora kandi ugahora uhindura ibintu neza hamwe nubutsinzi. Ibindi