Standard Position & Reference Angles

Positive angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise

Negative angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise

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.

Which of the following degree measures is represented by this diagram?

• 
• 
• 
• 

State the reference angle for the following angle in standard position

155 degrees

(a)  

Which of the following degree measures is represented by this diagram?

An angle is in standard position if the initial side is along the _______?

• positive y-axis
• positive x-axis
• negative y-axis
• negative x-axis