Express 75° in radians, leaving your answer in terms of \(\pi\).
FURTHER MATHEMATICS
WAEC 2011
Express 75° in radians, leaving your answer in terms of \(\pi\).
- A. \(\frac{5\pi}{12}\)
- B. \(\frac{3\pi}{4}\)
- C. \(\frac{5\pi}{6}\)
- D. \(\frac{7\pi}{6}\)
Correct Answer: A. \(\frac{5\pi}{12}\)
Explanation
\(180° = \pi rads\)
\(1° = \frac{\pi}{180}\)
\(\therefore 75° = \frac{\pi}{180} \times 75 \)
= \(\frac{5\pi}{12}\)
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