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Verified Answer :

Correct answer is: AB is parallel to PQ.

AB is perpendicular to CR and DS => CR is parallel to DS

CR = DS and  CR is parallel to DS => CRSD is a parallelogram =>
=> CD is parallel to RS => AB is parallel to PQ

zitterkoph

Answer:

m∠RCD = m∠ACD ÷ 2

Step-by-step explanation:

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