Intera ndende-isahani itatu yikubye inyuma igice, umurongo wa 1 wikubye ni 180 °, umurongo wa 3 wikubye ufite 135 °.Nukoresha muburyo bworoshye bwo gufungura.Icyapa cyo hejuru cyumukandara uhujwe hamwe nigishushanyo cyihariye kirashobora guhindurwa ukurikije ibikenerwa nibicuruzwa, bigatanga umwanya wo gushiraho ibikoresho bidasanzwe byubwoko bwibikoresho.