Q16 of 90 Page 111

The width of a rectangle is two - thirds its length. If the perimeter is 180 metres, find the dimensions of the rectangle.

Let the length and breadth of a rectangle be l m and b m


According to the question


(A)


Perimeter of a rectangle = 2(l + b)


And 2(l + b) = 180


Putting (A) we get




⇒ 5l = 90 × 3


⇒ l = 54 m


⇒ b = 2/3 (54) = 36m


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