Sarudzo yokuti darisanwa idivi ripi uye remuny'asi idivi ripi inodudzirwa nokuti timire mugonyo ripi. Muzendami ndiye murefu anoramba aine zita rimwechete - uyu haachinje. Divi rakabatana negonyo ratiri kushanda naro ndiro rinova remuny'asi, repiri rakaita mutwi nedivi remuny'asi ndiro rinova darisanwa. Zvizhinji zvichatsanangurwa muchikamu chePimagonyonhatu, (trigonometry) chichatevera mberi.