Use the given information to determine which lines, if any, are parallel. Justify each conclusion with a theorem or postulate.

1. angle 2 is supplementary to angle 3

2. Angle 1 is congruent to angle 3

3. Angle 6 is supplementary to angle 7

Angle 9 is congruent to angle 12

Use the given information to determine which lines if any are parallel Justify each conclusion with a theorem or postulate 1 angle 2 is supplementary to angle 3 class=