What is the perimeter, in centimeters, of a rectangle whose width is n centimeters and whose length is 4 centimeters more than it's width, in terms of n?

Question

Area and Perimeter of Rectangles

Answer 1

For a rectangle Perimeter = 2 Length + 2 Width

Width = n

Length = n + 4

 

Perimeter = 2(n+4)+2n

Perimeter =2n + 8 + 2n

Perimeter = 4n + 8