Co-Terminal Reference Angles Radians and Degrees

angles that share the same terminal side

angles that are supplementary

angles that are complimentary

angles that are opposite each other

angles measuring more than 180 degrees

co-terminal with another angle

an angle measured in degrees

Acute, positive angle formed with terminal side and x axis

300

135

315

45

375°, -600°

125°, -356°

135°, -585°

60°, -120°

$$-\frac{5\pi}{2}$$  

$$-\frac{\pi}{2}$$  

$$\frac{\pi}{2}$$  

$$\frac{3\pi}{2}$$  

30⁰

330⁰

360⁰

300⁰

$$\frac{11\pi}{6}$$  

$$-\frac{7\pi}{6}$$  

$$\frac{13\pi}{6}$$  

$$-\frac{5\pi}{6}$$  

$$\frac{7\pi}{4}$$  

$$\frac{\pi}{4}$$  

$$-\frac{7\pi}{4}$$  

$$-\frac{11\pi}{4}$$  

-215

215

225

-225

$$2\pi$$  

$$3\pi$$  

$$-2\pi$$  

$$-4\pi$$