Angles on Coordinate Plane

Find a coterminal angle to -180 degrees.

• 180

• 90

• 270

• 360

Find a coterminal angle to -27 degrees.

• -387

• 27

• 323

• -393

What is the reference angle for 275 degrees?

• 85 degrees

• 95 degrees

• -85 degrees

• -95 degrees

What is the reference angle for 11pi/6

• pi/6

• pi/3

• pi/4

• 5pi/6

What is the reference angle for 5pi/4?

• pi/4

• 7pi/4

• pi/6

• pi/3

Find a coterminal angle to 5 degrees.

• 365

• 255

• -220

• -365

Find a coterminal angle to 45 degrees.

• 360

• 405

• 315

• 295

Find a coterminal angle to 0 degrees.

• 360

• 180

• 90

• 270

Find the reference angle for an angle measuring -300⁰

• 60⁰

• -60⁰

• 30⁰

• 45⁰

What is the reference angle for 240 degrees?

• 60 degrees

• 30 degrees

• 45 degrees

• 210 degrees