According to data on the state lowa the amount of water used for cooking per house hold per month

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).