Trig Functions of Angles #1

Find the measure of the angle marked in red. (a)  

• -230°
• 130°
• 230°
• 50°

Convert 100⁰ to radians (a)  

• 5π/9
• π/2
• 5π/8
• 5π/6

What is 11π/6 radians in degrees? 

Mathematical Equivalence

ON

How many radians does a circle have? (a)  

•   360 degrees
• 2pi radians
• pi radians
• 2 radians

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.

What is 4π/3 radians in degrees?
 

• 120
• 240
• 210
• 270

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

Find the measure of the angle marked in red.

• -200°

• 200

• -110°

• 110°