Given: mDe = 443°; Mz? = (2x√9)°; mZ4 = MZB
Prove: ∠EDW = ∠Ea
Converse Alternate Interior Angles Postulate: If two lines are cut by a transversal and the alternate interior angles are congruent, then the lines are parallel.
Converse Alternate Exterior Angles Postulate: If two lines are cut by a transversal and the alternate exterior angles are congruent, then the lines are parallel.