Radian and Degree Measures

 $Express\ the\ angle\ \frac{3\pi}{2}\ in\ \deg rees.\$   

•  $150\degree$  

•  $225\degree$  

•  $240\degree$  

•  $270\degree$  

 $Convert\ 400\degree\ in\ terms\ of\ \pi\ radians.$  

•  $\frac{15\pi}{9}\ rad$  

•  $\frac{20\pi}{9}rad$  

•  $\frac{10\pi}{9}rad$  

•  $\frac{11\pi}{9}rad$  

 $What\ is\ the\ reference\ angle\ of\ \frac{5\pi}{6}?$  

•  $\frac{\pi}{2}$  

•  $\frac{\pi}{3}$  

•  $\frac{\pi}{4}$  

•  $\frac{\pi}{6}$  

 $To\ convert\ \deg rees\ to\ radians,\$  

•  $multiply\ \deg rees\ by\ \frac{180\degree}{\pi}$  

•  $divide\ \deg rees\ by\ \frac{180\degree}{\pi}$  

•  $multiply\ \deg rees\ by\ \frac{\pi}{180\degree}$  

•  $divide\ \deg rees\ by\ \frac{\pi}{180\degree}$  

 $The\ reference\ angle\ of\ -\frac{5\pi}{4}.$  

•  $\frac{\pi}{2}$  

•  $\frac{\pi}{3}$  

•  $\frac{\pi}{4}$  

•  $\frac{\pi}{6}$  

 $The\ reference\ angle\ of\ 570\degree.$  

•  $30\degree$  

•  $45\degree$  

•  $60\degree$  

•  $90\degree$  

How many radians does a circle have?

• $\pi\ radians$

• $360\degree$

• $2\pi\ radians$

• $\frac{\pi}{2}radians$

 $Convert\ -\pi\ radians\ to\ \deg rees.$  

•  $180\degree$  

•  $-180\degree$  

•  $360\degree$  

•  $-360\degree$  

 $Convert\ \frac{11\pi}{3}\ in\ \deg rees.$  

•  $560\degree$  

•  $600\degree$  

•  $630\degree$  

•  $660\degree$  

 $Convert\ -900\degree\ in\ radians.$  

•  $-15.7\ rad$  

•  $15.7\ rad$  

•  $-15.7\pi\ rad$  

•  $15.7\pi\ rad$