Sauya 90°

Ku sauya $\displaystyle 90^{\circ}$. Ku danna , ku rubuta 90, sannan ku danna da . $\displaystyle 90^{\circ}$ shi ne radian 1.570796327, wato $\displaystyle \frac{\pi}{2}$. Ku sake danna da : grad 100.. Ku sake danna da : an koma digiri 90..

▶ Ku kalli wannan mataki a cikin bidiyon (27:52)