# Chapter 4 - Section 4.1 - Angles and Radian Measure - Exercise Set: 87

60° , $\frac{\pi}{3}$ radians

#### Work Step by Step

To calculate how many degrees the minute hand of a clock moves, multiply the fraction of the revolution by 360°. $\frac{1}{6}$ * 360° = 60° To calculate how many radians the minute hand of a clock moves, multiply the fraction of the revolution by 2$\pi$. $\frac{1}{6}$ * 2$\pi$ = $\frac{\pi}{3}$ radians

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