## Algebra and Trigonometry 10th Edition

Counterclockwise rotation -> positive angle Draw a circular arc from the extremity of the initial side to the extremity of the terminal side. Use the formula: $s=r\theta$ $\theta=\frac{s}{r}$ Given that the length of the arc, $s$, is about 6.5 times the length of the sides, $r$: $\theta=6.5~radians$