Angles in the Unit Circle

The unit circle...

• Has center at (1,1)
• Has a circumference of 1
• Has a diameter of 1
• Has a radius of 1

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.

Tags

CCSS.5.G.A.1

Positive angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise

Negative angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise

At θ = 30°, what is the equivalent angle measure in radians?

• π/2
• π/3
• π/4
• π/6

Tags

CCSS.HSF.TF.A.1

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

Tags

CCSS.HSF.TF.A.2

Convert π/4 radians to degrees

• 90⁰
• 45⁰
• 60⁰
• 30⁰

Tags

CCSS.HSF.TF.A.2

What is 11π/6 radians in degrees? 

• 30
• 330
• 360
•  300

Tags

CCSS.HSF.TF.A.1

What is 225  degrees in radians? 

• 7π/4
• 5π/4
• 3π/4
• 5π/3

Tags

CCSS.HSF.TF.A.2

What is 4π/3 radians in degrees?
 

• 120
• 240
• 210
• 270

Tags

CCSS.HSF.TF.A.2