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