Question

Express the following information in mathematical form using two variables :
(i) The perimeter of a rectangle is 36 cm.

Answer 1

Let the length and breadth of the rectangle be x m and y m, respectively.
Now, perimeter of the rectangle = 2(length + breadth)
⇒ 36 = 2( x + y)
⇒ 2( x + y) = 36
⇒ x + y = 18