Standard Position, Co-Terminal Angles, Reference Angles, Circular Trigonometry

Standard position is when .....

• the initial side of the angle is on the positive x-axis.
• the initial side of the angle is on the negative x-axis.
• the initial side of the angle is on the positive y-axis.
• the initial side of the angle is on the negative y-axis.

Negative angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise

Positive angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise

In which quadrant is -570⁰

• I

• II

• III

• IV

In which quadrant would you find an angle measuring  -700°?

• 1
• 2
• 3
• 4

Find a coterminal angle to 45°.

• 360°

• 405°

• 315°

• 295°

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

• 375°, -600°

• 125°, -356°

• 135°, -585°

• 60°, -120°

Find an angle coterminal with an angle which measures 11π ∕ 3.

• 17 π / 3
• 4π ∕ 3
• π ∕ 3
• 8π ∕ 3

Find an angle coterminal with an angle measuring 17π / 4 radians.

• π ∕ 3
• 5π ∕ 4
• π ∕ 4
• 13π ∕ 4

• A

• B

• C

• D