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UKMT Junior Kangaroo, 2024

Number theory Difficulty 1.0 Junior Find the answer United Kingdom

The area of a rectangle is $12\text{ cm}^2$ . The lengths of its sides, measured in cm, are integers. Which of the following could be the perimeter of the rectangle?

(A) $18\text{ cm}$ (B) $20\text{ cm}$ (C) $22\text{ cm}$ (D) $24\text{ cm}$ (E) $26\text{ cm}$

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