Only need E. 3. And A and B try to show work if you can

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

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

Iam at home. /: i am playing video games. translate the following statement into symbolic form.