The perimeter of a square is directly proportional to the length of its sides. a. write an equation to represent this direct variation. make sure to define your variables. b. in complete sentences, use a specific example to justify your equation from part a. include a drawing in your answer.

A. write an equation to represent this direct variation. make sure to define your variables.  we define the variables:   p = perimeter  l = sides of the square  the equation that represents this proportional variation is:   p = 4l  b. in complete sentences, use a specific example to justify your equation from part a. include a drawing in your answer.  example: consider a square of sides 4 units. find the perimeter.the perimeter of the square can be found in two ways:   way 1:   p = 4 + 4 + 4 + 4 = 16  way 2:     using equation of part a:   p = 4l  p = 4 * (4)  p = 16  note: see attached image.