Introduction to Co-Terminal Angles Reference Angles

Find a coterminal angle to 5°.

• 365°

• 255°

• -220°

• -365°

Find a coterminal angle to 45°.

• 360°

• 405°

• 315°

• 295°

Find a coterminal angle to -90°.

• -450°

• 90°

• 180°

• -180°

Find a coterminal angle to -27°.

• -387°

• 27°

• 323°

• -393°

In which quadrant would you find an angle measuring -740°

• 1

• 2

• 3

• 4

What are the negative and positive coterminal angles of 240°?

• 540°, -120°

• 600°, -120°

• 425°, -240°

• 120°, -135°

What are the negative and positive coterminal angles of -225°?

• 375°, -600°

• 125°, -356°

• 135°, -585°

• 60°, -120°

In which quadrant is -570⁰

• I

• II

• III

• IV

What is the reference angle for 125°?

• 235°

• 125°

• 75°

• 55°

What is the reference angle for -30°?

• 150°

• 30°

• 80°

• 60°