Question

given: ∠8≅∠16. which lines must be parallel? a r and s b p and q c p and r d q and s e cannot be determined

Explanation:

Step1: Recall parallel - line theorem

If two lines are cut by a transversal and corresponding angles are congruent, then the lines are parallel. $\angle8$ and $\angle16$ are corresponding angles formed by lines $r$ and $s$ with transversal $q$.

Answer:

A. $r$ and $s$