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SSC MTS 2025 · PYQ · Mensuration · medium

The area of a rectangle is 12 square cm. The diagonal of the rectangle is 5 cm. What is the perimeter (in cm) of the rectangle?

  1. A.16
  2. B.19
  3. C.13
  4. D.14✓ Correct

Explanation

With area l×b = 12 and diagonal √(l²+b²) = 5, we get l²+b² = 25. Then (l+b)² = 25 + 2×12 = 49, so l+b = 7. Perimeter = 2×7 = 14 cm.
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