Question

lines l, m, and n lie in a plane and are cut by a transversal, t. ∠1 is supplementary to ∠2, and ∠2 is supplementary to ∠3. which lines, if any, are parallel? what justifies your answer?

Explanation:

Answer:

Lines \( m \) and \( n \) are parallel.
If two angles are supplementary to the same angle, then they are congruent; if corresponding angles are congruent, then the lines are parallel.