Aconjecture and the flowchart proof used to prove the conjecture are shown. given: j k l m is a parallelogram. ray l n bisects angle k l p. prove: angle 1 is congruent to angle 3. art: parallelogram j k l m. two rays l n and lp share an endpoint at vertex l. ray l n extends horizontally right, continuing segment m l and forming an exterior angle k l n. angle k l n is labeled 2. ray l p extends diagonally right to the ray l n at vertex forming an exterior angle n l p. angle n l p is labeled as 3. drag an expression or phrase to each box to complete the proof.