Question

The perimeter of a rectangle is 524 m. The length is 42 m greater than the width. what is the length of the rectangle

Answer 1

Let the width be x

Width = x
Lenght = 42 + x

Perimeter of a rectangle = (2 x width) + (2 x lenght)
524 = (2x) + [2(42 + x)]
524 = 2x + 84 + 2x
440 = 4x
110 = x

Width = 110
Length = 42 + 110 = 152