abdalafernando46 abdalafernando46 13-03-2020 Mathematics contestada Which conclusion of the following statement must always be true? “If angle 1 and angle 2 are alternate interior angles of parallel lines cut by a transversal, then” angle 1 and angle 2 are supplementary. angle 1 and angle 2 are complementary. angle 1 and angle 2 are a linear pair. angle 1 is congruent to angle 2.