Using equations to find the length or width of a rectangle when given the perimeter or area
Answer
L = length, W = width
We are given: L = 4W, L + W = 22
Using substitution: 4W + W = 22
⇒ 5W = 22
⇒ W = 22/5 = 4.4cm, L = 4W =88/5 = 17.6cm
Is this lesson helpful?
