What is the radian measure of 150°?
\(\dfrac{5\pi}{6}\)
Conversion: \(\theta_{\text{rad}} = \theta_{\deg} \times \dfrac{\pi}{180^\circ}\).
For 150°: \(150 \times \dfrac{\pi}{180} = \dfrac{5\pi}{6}\).
Hence, the correct answer is \(\dfrac{5\pi}{6}\).
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