Radian and Angle Conversion

 $\frac{\pi}{4}\ radians\ =_{ }$  

•  $90\degree$  

•  $45\degree$  

•  $120\degree$  

 $90\degree\ =$  

•  $\pi$  radians

•  $\frac{\pi}{2\ }$  radians

•  $\frac{2}{3}\pi$  radians

 $180\degree\ =$  

•  $\frac{\pi}{2}$  radians

•  $2\pi$ radians

•  $\pi$  radians

 $270\degree\ =$  

•  $\pi$  radians

•  $\frac{3}{2}\pi\ radians$  

•  $\pi\ radians$  

 $98\degree$  is in what quadrant?

• Second

• First

• Third 

• Fourth

The circumference of a circle =

• $\pi\ radians$

• $2\pi\ radians$
  

• $\frac{\pi}{2}$ radians

A coterminal angle for 280 degrees is_______

• 50 $\degree$  

• -80 $\degree$  

• 120 $\degree$  

 $-120\degree\ is\ in\ what\ quadrant?$  

• Two

• Third

• One

 $\frac{\pi}{3}\ radians=$  

•  $90\degree$  

•  $60\degree$  

•  $180\degree$  

 $225\degree\ =$  

•  $\frac{4}{5}\pi\ radians$  

•  $\frac{3}{2}\pi\ radians$  

•  $\frac{5}{4}\pi\ radians$