Final answer:
To determine which lines can be proven parallel given the angle relationship <8 = <19, we need to identify the corresponding angles in the lines. If the corresponding angles are congruent, then the lines are parallel.
Step-by-step explanation:
To determine which lines can be proven parallel given the angle relationship <8 = <19, we need to identify the corresponding angles in the lines.
If two lines are cut by a transversal and the corresponding angles are congruent, then the lines are parallel. In this case, if the angle <8 is congruent to the angle <19, then the lines that contain those angles are parallel.