Convert Degrees to/from Radians

 How do you convert from degrees to radians

• divide degrees by 2

• multiply degrees by  $\frac{\pi}{180}$ 

• multiply degrees by  $\frac{180}{\pi}$ 

• divide degrees by 180

Convert to radians

 $0\degree$  

•  $0$  

•  $90$  

•  $\pi$  

•  $2\pi$  

Convert 60⁰ to radians

•  $\frac{π}{4}$ 

•  $\frac{π}{3}$ 
  

•  $\frac{π}{2}$ 
  

•  $\frac{π}{6}$ 
  

•  $not\ given$ 

Convert 150⁰ to radians

• $\frac{5π}{6}$

• $\frac{3π}{4}$
  

• $\frac{7π}{6}$
  

• $\frac{2π}{3}$
  

• $\frac{15π}{8}$

What is  $225\degree$   in radians? 

•  $\frac{7\pi}{4}$  

•  $\frac{5\pi}{4}$  

•  $\frac{3\pi}{4}$  

•  $\frac{5\pi}{3}$  

 How do you convert from  radians to degrees

• divide degrees by 2

• multiply degrees by  $\frac{\pi}{180}$ 

• multiply degrees by  $\frac{180}{\pi}$ 

• divide degrees by 180

What is $\frac{2\pi}{3}$   radians in degrees? 

•  $150\degree$  

•  $120\degree$  

•  $180\degree$  

•  $30\degree$  

What is $\frac{5\pi}{4}$   radians in degrees? 

•  $135\degree$  

•  $225\degree$  

•  $315\degree$  

•  $45\degree$  

• not given

What is  $\frac{11\pi}{6}$   radians in degrees? 

• 30

• 330

• 360

•  300

Convert $\frac{5\pi}{3}$  to degrees