Given that :

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Perimeter of a rectangle $\"\"$ ------>(1) \ \

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Area of a rectangle is $\"\"$ \ \

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$\"\"$

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Divide each side by b \ \

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$\"\"$

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Substitute the value $\"\"$ in (1)

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$\"\"$

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Divide each side by 2

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$\"\"$

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Apply L.C.M rule : $\"\"$

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$\"\"$

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Multiply b to each side

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$\"\"$

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Cancel common terms \ \

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$\"\"$

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Subtract 16b from each side \ \

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$\"\"$

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By factoring method

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute the values $\"\"$ in $\"\"$

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$\"\"$

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$\"\"$

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So the measurements of the rectangle length and width is $\"\"$ and \ \

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$\"\"$ .