Co-Terminal Reference Angles Radians and Degrees

What are co-terminal angles?

• angles that share the same terminal side

• angles that are supplementary

• angles that are complimentary

• angles that are opposite each other

Find an angle coterminal with 46°

• -314°

• 226°

• -46°

• 446°

What is the reference angle for 240 degrees?

• 60 degrees

• 30 degrees

• 45 degrees

• 210 degrees

Match the following angles to their standard position.

• −260°

• 
• −340°

• 
• −185°

• 
• 150°

• 
• 300°

• 

What is 240 degrees in radians? 

• π/3

• 4π/3

• 5π/3

• 2π/3

Tags

CCSS.HSF.TF.A.1

• 90 degrees

• 30 degrees

• 45 degrees

• 60 degrees

Tags

CCSS.HSF.TF.A.1

What is 5π/6 radians in degrees?

• 180

• 150

• 360

• 120

Tags

CCSS.HSF.TF.A.1

If you had to evaluate the sin 330 degrees, what is the reference angle you would use?

• 60 degrees

• 30 degrees

• 45 degrees

• None of the above