IGcagcane

Kusilinganisazwe sika-Ekilidu, igcagcane lingumacalazaqa ovamile, okusho ukuthi linezinhlangothi ezine ezilinganayo nama izingoni ezine ezilinganayo (izingoni ezingamazinga angama-90, π/2 ama-radian angles, noma izingoni eziqhiyeme ).