Question

express the following information in mathematical from using variables x and y the perimeter of a rectangle is 40 cm​

Answer 1

Answer:

2(x+ y) = 40 cm

or, x+y= 40/2=20 cm

or, x + y = 20 cm, the required answer

Answer 2

Answer:

⇒length=x

⇒breath=y

perimeter of a rectangle is= 40 cm

⇒perimeter of a rectangle=2(l+b)

⇒ 2(x+y)=40

⇒ x+y=40/2

⇒ x+y=20