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Answer:
p is perpendicular to l
Step-by-step explanation:
The congruent corresponding angles at the unmarked transversal mean that lines l and m are parallel. Just as corresponding angles at that unmarked transversal are congruent, so the corresponding angles at transversal p are congruent.
All of the angles of intersection of lines l and m with p are right angles. l and p are perpendicular lines.
