Question

Find the measure of the missing angles.

Answer 1

Given$\angle AOC={30}^{\circ }and\angle COD={90}^{\circ }Find\angle BOD$
We know that $\angle AOB={180}^{\circ }$ as it is a straight angle
$\therefore AOB=\angle AOC+\angle COD+\angle BOD180=30+90+\angle BOD\therefore \angle BOD=180-{120}^{\circ }={60}^{\circ }\therefore \angle BOD=60$