## Precalculus: Mathematics for Calculus, 7th Edition

- $114.65^{\circ}$
We know that- $1$ rad = $(\frac{180}{\pi})^{\circ}$ Therefore -$2$ rad = - $(2\times\frac{180}{\pi})^{\circ}$ = -$(2\times\frac{180}{3.14})^{\circ}$ = - $(\frac{360}{3.14})^{\circ}$ = - $114.65^{\circ}$