GeometryQuestion 444 of 550

The length of a rectangle is 3 times its width. Its perimeter is 48 cm. What is its area?

  1. 144 cm²
  2. 48 cm²
  3. 108 cm²
  4. 72 cm²
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Correct answer: 108 cm²

Perimeter = 2(w + 3w) = 8w = 48, so w = 6 and the length is 18. Area = 6 × 18 = 108 cm².

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Questions last reviewed: 21 October 2026