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Question

what will happen to the perimeter of a rectangle if its length is doubled and breadth remains the same?

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Solution

Dear Student, let initial length is l and breadth is b so Perimeter of rectangle = 2l+b unitNew length = 2l and new breadth = b so new perimeter = 22l+b unit so increase in perimeter = new perimeter - old perimeter= 4l+2b-2l+2b= 2lSo perimeter will be increase by 2l unitRegards

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