Question

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Answer 1

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Answer 2

The answer is:-

Given :- AO=OB,angle A=angle B

To prove:-Triangle AOC congrent to Triangle BOD

Proof:-In triangle AOC and BOD

AO=BO(given)

angleOAC=angleOBD(given)

angleCOA=angleDOB(Vertically

opposite angle)

Triangle AOC congrent to Triangle BOD

(ASA)

angle ACB is equal to Angle BDO(cpct)