Question
The diagram shows square A and rectangle B. The length of rectangle B is 21 cm longer than its breadth. The breadth of rectangle B is the same as the length of square A. The perimeter of square A is 60 cm. Find the area of rectangle B.
3 m

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The diagram shows square A and rectangle B. The length of rectangle B is 21 cm longer than its breadth. The breadth of rectangle B is the same as the length of square A. The perimeter of square A is 60 cm. Find the area of rectangle B.