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