Question

M (AOC) = 70, m (COE) = 60; B is bisect AOC; OD is bissertriz Coe; calculate the extent of BOD.

Answer 1

`m\angle BOD=m\angle BOC+m\angle COD\\\\ m \angle BOC=(1)/(2)m \angle AOC=(1)/(2)\cdot70=35\\ m \angle COD=(1)/(2)m \angle COE=(1)/(2)\cdot60=30\\\\ m\angle BOD=35+30=65`