Question

∠1 and ∠2 are supplementary and m∠1 = m∠3. Which one of these statements will always be true?

Answer 1

Given: Angle 1 and angle 2 are supplementary.

Angle 3 and angle 4 are supplementary.

Angle 1 is congruent to angle 3.

Prove: Angle 2 is congruent to angle 4.

Answer 2

Depending on what you are looking for, based on the question alone, I think that m∠2 and m∠3 are supplementary