Answer:
MN = LK because of the definition of a 'parallelogram'.
Step-by-step explanation:
We are given a parallelogram KLMN.
We know that a 'parallelogram' is a quadrilateral which have two opposite sides parallel and equal in length.
Therefore, from parallelogram KLMN, we get,
MN║LK and ML║NK
MN = LK and ML = LK.
Hence, we that MN = LK because of the definition of a 'parallelogram'.