Co-Terminal Reference Angles

Which is a coterminal angle to the angle shown?

• 831

• 832

• 833

• 834

Which is a coterminal angle to the angle shown?

• -215

• 215

• 225

• -225

Find the measure of each angle

• a

• b

• c

• d

Find the measure of each angle

• a

• b

• c

• d

Find the measure of each angle

• a

• b

• c

• d

Which of the following is closest to the measure of the angle drawn by the green curve?

• 5/6 π

• 5/3 π

• 4/5 π

• 4/3 π

Find a coterminal angle to -180 degrees.

• 180

• 90

• 270

• 360

What is the reference angle and co-terminal angle of 130⁰ ?

• 50⁰ and -230⁰

• 130⁰ and 310⁰

• 50⁰ and 230⁰

• 130⁰ and -230

Find a coterminal angle to -27°.

• -387°

• 27°

• 323°

• -393°

Find the reference angle for an angle measuring -310⁰

• 50⁰

• -50⁰

• 20⁰

• 40⁰