Unit Circle Practice 1

The unit circle...

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

Tags

CCSS.HSF.TF.A.1

What is a complete circle in radians?

• π
• 2π
• 1/2 π
• 1

What is half a circle in radians?

• π/4
• π
• 2π
• π/2

Tags

CCSS.HSF.TF.A.1

What is 4π/3 radians in degrees?
 

• 120
• 240
• 210
• 270

Tags

CCSS.HSF.TF.A.1

What is 120 degrees in radians?
 

• 2π/3
• π/3
• 5π/3
• 4π/3

Tags

CCSS.HSF.TF.A.1

What Quadrant is -110^o in?

• I

• II

• III

• IV

Tags

CCSS.HSF.TF.A.2

What Quadrant is 145^o in?

• I

• II

• III

• IV

Tags

CCSS.HSF.TF.A.2

The sine of any angle on the unit circle is the y-coordinate.

• True
• False

Tags

CCSS.HSF.TF.A.2

The cosine of any angle on the unit circle is the y-coordinate.

• True
• False

Tags

CCSS.HSF.TF.A.2

• 1/2

• -1/2

• √3/2

• -√3/2

Tags

CCSS.HSF.TF.A.2