He pane totohu nui te nati rivet he koki 90° te rahi, ko te nati rivet he koki 120° te rahi, he pane totohu iti.
Te rerekētanga i waenganui i ngā mea e rua:
1. He rerekē te koki o te upoko.
2. He rerekē te whānui o waho o te pane.
Wā tuku: Oketopa-27-2021