Question 275454
The length of a rectangle is 3cm  longer than its width. If the perimeter of the rectangle is 26cm , find its area. 

Let the width be x

the length will be x+3

perimeter of rectangle = 2L+2W

= 2*x+2*(x+3)

2x+2x+6 =26

4x=26-6
x=20/4
x=5

Length will be x+3 = 5+3 =8 

Area of rectangle = L  * W

= 5*8 = 40 square cms.