Question

The width of a rectangle is 2cm less than its length. The perimeter of the rectangle is 16 cm.

What is the length of the rectangle?

Answer 1

Explanation:

Let the Length of the rectangle = x

Width = x - 2

Perimeter = 16 cm

2 * ( length + width) = 16

2 * ( x + x-2 ) = 16

2 * (2x - 2) = 16

2x - 2 = 16 /2

2x - 2 = 8

2x = 8+2

2x= 10

x = 10/2

x = 5

Length of the rectangle = 5 cm