Given: m || n, ∠1 ≅ ∠3 Prove: p || q
Horizontal parallel lines n and m are cut by transversals q and p. At the intersection of lines q and m, the uppercase right angle is angle 3. At the intersection of lines p and m, the uppercase right angle is angle 2. At the intersection of lines p and n, the bottom left angle is angle 1.

Complete the two-column proof.
♣ =
♦ =
♠ =