The area of a rectangular wall of a barn is 108 square feet. Its length is 12 feet longer than the width. Find the length and width of the wall of the barn.

Area = Width x Length Area = 108 Square root of 108 = 10.4 108/ 9 = 12      ...12 is not 12 larger than 9 108/ 6 = 18      ...18 is 12 larger than 6 108 = 6 x 18 Width = 6 Length = 18