Angles on Coordinate Plane

Find the reference angle.

Find the reference angle.

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

Convert 270^o into radians

• π/ 4

• 3π/ 2

• 3π/ 4

• π/ 2

Convert 7π/ 6 radians into degrees

• 225

• 210

• 270

• 240

What is the reference angle for 240°?

• 60°

• 30°

• 45°

• 210°

• π/2
• π/3
• π/4
• π/6

What is the reference angle for -30 degrees?

• 150 degrees

• 30 degrees

• 80 degrees

• 60 degrees

Negative angles are measured in which direction from standard position?

• Clockwise

• Counterclockwise