The following is an incomplete paragraph proving that the opposite angles of parallelogram ABCD are congruent: B.
According to the given information, AB IDC and BC IAD. Using a straightedge, extend segment AB and place point above point by the same reasoning, extend segment and place port to the part 2
are congruent by the Alternate Interior Angles Theorem. Angles
are congruent by the corresponding Angles Theorem. By the Transitive Property of Eagles and are congruentes
and BAT are congruent by the Alternate Interior Theorem. Angles BAT and CDA are congruent by the corresponding Angles Theorem. By the transitive Property of Equat. ABCs congruent to a contes
parallelogram ABCD are congruent.
What angles accurately complete the proof? (5 points)