In a quadrilateral ABCD, CO and DO are the bisector of ∠C and ∠D r

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

In a quadrilateral ABCD, CO and DO are the bisector of ∠C and ∠D respectively. Prove that ∠COD=12(∠A+∠B).

Answer»

In a quadrilateral ABCD, CO and DO are the bisector of $∠ C a n d ∠ D$ respectively.

Prove that $∠ C O D = \frac{1}{2} (∠ A + ∠ B) .$