40 Urunigi rw'Urunigi Wambare umurongo

Ibisobanuro bigufi:

1. Hamwe no kwisiga amavuta, iyo umurongo wo gutanga wumye, bituma kwihuta byihuta bishoboka
2. Ifite coefficente yo hasi cyane
3. Mugabanye impagarara zisahani
4. Komeza urusaku rwawe
5. Kongera ubuzima bw'isahani y'urunigi, kandi ntibizatera kwangirika no gushushanya ku isahani
6. Kugabanya gukoresha ingufu