In a quadrilateral ABCD, CO and DO are the bisectors of ∠C and ∠D – InterviewSolution

1.	In a quadrilateral ABCD, CO and DO are the bisectors of ∠C and ∠D respectively. Prove that ∠COD=12(∠A+∠B).
Answer» In a quadrilateral ABCD, CO and DO are the bisectors of $∠ C$ and $∠ D$ respectively. Prove that $∠ C O D = \frac{1}{2} (∠ A + ∠ B) .$

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