OA = OB and OD = OC. Then, ZOAD = ? – InterviewSolution

1.

OA = OB and OD = OC. Then, ZOAD = ?

Answer»

Answer:

In△AOD&△BCO

=>OD=OC (GIVEN)

OA=OB(given)

∠AOD=∠COB (vertically OPPOSITE)

=>△AOD≅△BOC

∠OAD=∠OBC(angles corresponding to congruent sides)

[∵ AD & BC make EQUAL angles with the same line AB]

HenceAD∣∣BC

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