In the picture below line PQ is parallel to line RS in the lines are cut by a transversal, line TU. The transversal is not perpendicular to the parallel lines. Which of the following are congruent angles?

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.