Discussion

The parameter of a square is double the perimeter of a rectangle. The area of the rectangle is 480 sq cm. Find the area of the square.

Answer: D

Let the side of the square be a cm. Let the length and the breadth of the rectangle be l cm and b cm respectively.

4a = 2(l + b)

2a = l + b

l . b = 480

We cannot find ( l + b) only with the help of l . b. Therefore a cannot be found .

Area of the square cannot be found.

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