The figure below shows a transversal t which intersects the parallel lines pq and rs: lines pq and rs are parallel with transversal t intersecting the lines. going clockwise, angles 1, 2, 3, and 4 are on line pq with transversal t intersecting it and angles 5, 6, 7, and 8 are on line rs. write a paragraph to prove that the measure of angle 4 is equal to the measure of angle 8.