Reference Angles
Radians to Degrees
Degrees to Radians
unit circle
100

Find the reference angle for a rotation of 215°.

35

100

Convert the angle 5π/6 radians to degrees.

150∘

100

Convert the following angle from degrees to radians.

225∘


5π/4

100

Find the exact value of cos(π/4) in simplest form.

√2/2

200

Find the reference angle for a rotation of 232°.

52∘


200

Convert the angle 11/4 radians to degrees.

495∘

200

Convert the following angle from degrees to radians.

345∘


23π/12

200

Find the exact value of tan(π) in simplest form.

0

300

Find the reference angle for a rotation of 121°.


59∘

300

Convert the angle 3π/4 radians to degrees.

135∘

300

Convert the following angle from degrees to radians. 

75∘


5π/12

300

Find the exact value of cos(3π/4) in simplest form.

-√2/2

400

Find the reference angle for a rotation of 209°.

29∘

400

Convert the angle 9π/4 radians to degrees.

405∘

400

Convert the following angle from degrees to radians. 

570∘


19π/6

400

Find the exact value of tan(11π/6) in simplest form.

-√3/3

500

Find the reference angle for a rotation of 333°.

27∘

500

Convert the angle 5π/3 radians to degrees.

300∘

500

Convert the following angle from degrees to radians. 

495∘


11π/4

500

recite all of the angles in the first quadrant of the unit circle

im not typing all that out