Reference Angles Radians

• π/2
• π/3
• π/4
• π/6

What is the reference angle for 2pi/3

• pi/4

• 7pi/6

• 4pi/3

• pi/3

Which of the following is closest to the measure of the angle shown?

• 7/10 π

• 3/8 π

• 7/20 π

• 3/2 π

What is the reference angle for 5pi/4?

• pi/4

• 7pi/4

• pi/6

• pi/3

• A

• B

• C

• D

Find the reference angle for an angle measuring θ = 7π / 5

• π / 5

• 2π /5

• 3π / 5

• 4π / 5

Find the reference angle for an angle measuring θ = 11π / 7

• 2π / 7

• 3π / 7

• 4π / 7

• 5π /7

Find the reference angle.

Convert 150⁰ to radians

• 5π/6

• 3π/4

• 7π/6

• 2π/3