Co-Terminal Angles Reference Angles Unit Circle

Which of the following is a negative coterminal angle of 165 degrees?

• -165
• 525
• -525
• -555

In which quadrant would you find an angle measuring -740°

• 1
• 2
• 3
• 4

What are the negative and positive coterminal angles of -225 degrees?

• 375°, -600°
• 125°, -356°
• 135°, -585°
• 60°, -120°

What is the reference angle for -30 degrees?

• 150 degrees
• 30 degrees
• 80 degrees
• 60 degrees

What is the reference angle for 125 degrees?

• 235 degrees
• 125 degrees
• 75 degrees
• 55 degrees

What is the reference angle for 240 degrees?

• 60 degrees
• 30 degrees
• 45 degrees
• 210 degrees

Find the reference angle for an angle measuring -310⁰

• 50⁰
• -50⁰
• 20⁰
• 40⁰

What is the reference angle for 275 degrees?

• 85 degrees
• 95 degrees
• -85 degrees
• -95 degrees

Convert from degrees to radians:  135°

• 2π ∕ 3
• 3π ∕ 4
• 5π ∕ 4
• 3π ∕ 5

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

• 2π / 7
• 3π / 7
• 4π / 7
• 5π /7