Reference Angle, Radians to Degrees, Degrees to Radians, 45-45-90, 30-60-90 Triangle

What is 5π/6 radians in degrees?

• 180

• 150

• 360

• 120

• 60 degrees

• 30 degrees

• 45 degrees

• None of the above

Convert 90° to radians.

What is the reference angle for a rotation of 208°?

• 8°

• 28°

• 62°

• 152°

• 1π/25

• 5π/25

• 3π/25

• 6π/25

What is reference angle for 215°

• 145

• 35

• 55

• -45

What is the reference angle for 330° ?

• 60

• 30

• 150

• 45

If cosθ = √2/2, which could be the measure of θ?

• 30

• 45

• 60

• 90

Find side AB?

• 20 m

• 5 m

• 11.54 m

• 8.66 m

Find the measure of the angle to the nearest tenth.
No units necessary.