Q. 34.0( 24 Votes )
In a quadrilateral ABCD, CO and DO are the bisectors of ∠C and ∠D respectively. Prove that ∠COD = (∠A+∠B).
In quadrilateral ABCD,
CO is the bisector of ∠C
DO is the bisector of ∠D
⇒ ∠COD =
⇒ ∠D+∠C = 360 – (∠A+∠B)
⇒ ∠COD =
⇒ ∠COD = (∠A+∠B) Proved.
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