Angles Formed by Parallel Lines and Transversals

1. Two parallel lines are intersected by a transversal. One of the angles formed measures 110°. Find the measure of the angle that is supplementary to it. Explain your reasoning.

2. Imagine a street map where two streets run parallel to each other. A third street crosses both of them at an angle. If one of the alternate interior angles formed where the third street crosses the parallel streets measures 75°, what is the measure of the corresponding angle on the other parallel street? Explain how you found your answer.