Ukwelula okujulile kwensimbi kuyinqubo yokugxiviza, ukudonsa indandatho noma isikhunta sensimbi ukuze uguqule into yensimbi yepuleti ibe isilinda noma ingxenye yomumo webhokisi.
Ikhono lethu:
1.Umdwebo oyindilinga
2.Umdwebo we-ellipse
3.Umdwebo ongunxande
Umdwebo we-4.Hill
5.Umdwebo osemagqumeni
6.Ngomdwebo we-flange hemisphere
7.Umdwebo we-Flange
8.Umdwebo we-Flange
9.Umdwebo ojulile
10.Umdwebo we-taper
11.Ukudweba kabusha unxande
12.Ukwakheka komhlaba
13.Isinyathelo sokudweba
14.Umdwebo wokuhlehlisa
15.Uku-ayina
16.Umdwebo wephaneli