Question

The length of a rectangle is 30 more than its breadth. The perimeter of the rectangle is 180 cm. Find the length and breadth of the rectangle.

Answer 1

Let the breadth of the rectangle be x cm.
Then, length is (x + 30)cm.
Given, The perimeter of the rectangle is 180cm.
⇒ 2(length x breadth) = 180cm
⇒ 2(x + x + 30)cm = 180cm
⇒ 2x + 30 = 90cm
⇒ 2x = 60cm
⇒ x = 30cm
Thus, the breadth of the rectangle is 30cm.
Then, length is 60cm.