Question

Lin had a rectangular carpet. It was too large for her living room, and so on each side of the carpet, she cut a stripe 1 foot wide. As a result, the area of the carpet became 26 ft2 smaller. What was the original perimeter of the carpet?

Answer 1

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Answer 2

The original perimeter of the carpet was 30 ft .

• Perimeter of a rectangle = 2 * (length of the rectangle + breadth of the rectangle)
• According to the question,

     The area of carpet that is cutted by lin = 2 ( length * 1 ) + 2 [( breadth -2) * 1]

      26 = 2 (length) + 2 (breadth) - 4

      30 = 2 (length) + 2 (breadth)

       30 = original perimeter of the carpet