Question

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Answer 1

Answer:

in ∆AOB and ∆COD

OA = OC

ANGLE AOB = ANGLE COD

OB = OD

so,∆AOB is congruent to ∆COD

so, angle A = angle C

angle B = angle D

so AB || CD (two lines are parallel if a pair of alternate interior angle are equal)

Step-by-step explanation:

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