Question

What statement could be used to prove that m | n?

Answer 1

Angles 2 and 7 make alternate exterior angles. Alternate exterior angles are equal and congruent, and they exist between two parallel lines cut by a transversal.

Note that the line cutting through lines m and n is called a transversal.

So angle 2 = angle 7 is the statement that proves that m is parallel to n

Therefore, the last option is the correct answer.