Question

The length of a rectangle is twice its width. if the perimeter of the rectangle is 60 cm , find its length and width.

Answer 1

Largeur = x 

longueur  = 2 x 

2 ( x + 2 x ) = 60 

2 x + 4 x = 60

6 x = 60
x = 10 

largeur = 10  et longueur = 20