Question

measure of ZAPB.
In a quadrilateral, CO and DO are the bisectors of angle c and angle d respectively.
Prove that angleA + angle B = 2 angleCOD.





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Answer 1

Answer:

In △COD,

∠COD+∠1+∠2=180o

∠COD=180o−(∠1+∠2)

∠COD=180o−21(∠C+∠D)

∠COD=180o−21[360o−(∠A+∠B)]

∠COD=21(∠A+∠B)

Step-by-step explanation:

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