Which diagram shows lines that must be parallel lines cut by a transversal? Lines s and r are intersected by line m. At the intersection of lines s and m, the left angle is 89 degrees and right angle is 89 degrees. Lines s and r are intersected by line m. At the intersection of lines r and m, the top angle is 91 degrees. At the intersection of lines s and m, the top angle is 91 degrees. Lines s and r are intersected by line m. At the intersection of lines r and m, the right angle is 91 degrees. At the intersection of lines s and m, the left angle is 89 degrees. Lines s and r are intersected by line m. At the intersection of lines s and m, the left angle is 89 degrees and the top angle is 91 degrees.