This worksheet includes problems where a transversal line is intersecting two parallel lines and one angle measure is given, the students are asked to find the measure of the other angle by using the concept of angle pairs.

If the given and missing angles are corresponding angles or vertical angles, then their measures are equal and if the two angles are straight angles then the sum of their measure is 180 degrees. If there is no relation between those two angles then first use find the measure of corresponding angles and then find the missing angle.