Kulolu shicilelo, sizocubungula ukuthi iyini i-engeli elungile, sibhale uhlu lomumo wejiyomethri oyinhloko lapho kwenzeka khona, futhi sihlaziye nesibonelo senkinga kulesi sihloko.
Incazelo ye-engeli elungile
I-engeli ngqouma ilingana nama-degree angama-90.
Emidwebeni, hhayi i-arc eyindilinga esetshenziselwa ukukhombisa i-angle enjalo, kodwa isikwele.
I-engeli engakwesokudla inguhhafu we-engeli eqondile (180°) futhi kuma-radians ilingana no Π/2.
Izimo ezinama-engeli angakwesokudla
1. Isikwele - i-rhombus, wonke ama-engeli alingana no-90 °.
2. Unxande - ipharalelogramu, wonke amakhona awo alungile.
3. Unxantathu wesokudla ungenye yama-engeli angakwesokudla.
4. I-trapezoid engunxande - okungenani i-engeli eyodwa ingu-90 °.
Isibonelo senkinga
Kuyaziwa ukuthi kunxantathu enye yama-engeli ilungile, kanti amanye amabili alingana nomunye. Ake sithole amanani angaziwa.
Isixazululo
Njengoba sazi kusuka ku-, ilingana ne-180 °.
Ngakho-ke, ama-engeli amabili angaziwa angu-90°