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The two acute angles of a right triangle differ by π/10 radian. Find the larger one in degrees.

Competition practiceTrigonometry
  • A54°
  • B36°
  • C72°
  • D45°

Step-by-Step Solution

π/10 = 18°. The angles add up to 90° and differ by 18°, so the larger is (90 + 18)/2 = 54°.
Answer: A) 54°

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