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Proofs with transformations


KL and MN are parallel lines. O is the midpoint of segment LM.
Horizontal Parallel lines L K and N M. There is an intersecting line that runs diagonally down and right through points L and M. Point O lies on the transversal. The transversal line creates several angles. Angle K L O is labeled u, and Angle O M N is labeled v. Angle K L O is bottom right being interior and angle O M N is top left being interior.
Which transformation of the plane can we use to prove angles u and v are congruent, and why?
Choose 1 answer: