When parallel lines are cut by a transversal, several angle relationships can be established. One such relationship is that the alternate interior angles are congruent.
Considering the given angles 5 and 1, we can infer that they are formed by the same transversal and parallel lines. Therefore, angle 5 and angle 1 are alternate interior angles.
Hence, based on the fact that alternate interior angles are congruent when parallel lines are cut by a transversal, we can establish that angle 5 is congruent to angle 1.
Using facts about the angles formed when parallel lines are cute by a transversal, what relationship can you establish between angle 5 and angle 1?
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