GeometryQuestion 449 of 550

A triangle has vertices (1, 1), (4, 1) and (4, 5). What is its perimeter?

  1. 7 units
  2. 12 units
  3. 10 units
  4. 14 units
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Correct answer: 12 units

The legs are 3 and 4. The hypotenuse is √(9 + 16) = 5. Perimeter = 3 + 4 + 5 = 12.

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Questions last reviewed: 21 October 2026