GCEFurther MathematicsTrigonometry and Circular Measure2022

Convert 210° to radians, leaving your answer in terms of π.

A\(\frac{7\pi}{6}\)CORRECT
B\(\frac{5\pi}{6}\)
C\(\frac{7\pi}{4}\)
D\(\frac{11\pi}{6}\)
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Why the answer is A, and why the others tempt you.
To convert degrees to radians, multiply by π/180. So 210 × π/180 = 210π/180 = 7π/6. The fraction simplifies by dividing numerator and denominator by 30.
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