## Precalculus (6th Edition)

$60^o$
RECALL: To convert an angle in radians to degrees, multiply $\dfrac{180^o}{\pi}$ then simplify. Thus, converting the given angle to degrees gives: $\require{cancel} \dfrac{\pi}{3} \\= \dfrac{\pi}{3} \cdot \dfrac{180^o}{\pi} \\= \dfrac{\cancel{\pi}}{\cancel{3}} \cdot \dfrac{\cancel{180^o}60^o}{\cancel{\pi}} \\=60^o$