Reference Angles in Radians

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

• π / 5

• 2π /5

• 3π / 5

• 4π / 5

What is the reference angle for 2pi/3

• pi/4

• 7pi/6

• 4pi/3

• pi/3

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

• 2π / 7

• 3π / 7

• 4π / 7

• 5π /7

• π/2
• π/3
• π/4
• π/6

Find the reference angle.

Find the reference angle.

Find the exact value of the trig function.

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