Civil Service Exam Reviewer · Measurement and Geometry · hard
A right triangle has a hypotenuse of 15 cm and one leg of 9 cm. What is its area?
- 54 cm²
- 67.5 cm²
- 108 cm²
- 90 cm²
Answer
A. 54 cm²
Solution
Other leg = √(15² − 9²) = 12. Area = ½ × 9 × 12 = 54 cm².
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