## Precalculus (6th Edition) Blitzer

$\frac{22\pi}{3}$ radians
Given, 3 minutes and 40 seconds Total seconds in one revolution = 60 sec As we know, 1 min = 60 sec So 3 min = 180 sec Total sec = 180 + 40 = 220 sec Therefore, $\frac{220}{60}$ x $2\pi$ = $\frac{22\pi}{3}$ radians