Civil Service Exam Reviewer · Measurement and Geometry · hard

A right triangle has a hypotenuse of 5 cm and one leg of 3 cm. What is its area?

  1. 7.5 cm²
  2. 12 cm²
  3. 6 cm²
  4. 10 cm²

Answer

C. 6 cm²

Solution

Other leg = √(5² − 3²) = 4. Area = ½ × 3 × 4 = 6 cm².

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