Unit Circle Quiz

 sin(30^o)=

• sqt2/2

• 1/2

• 1

• sqt3/2

cos(90^o)=

• 1

• 0

• -1

• 1/2

• cos π/6

• sin π/4

• cos π/3

• tan π/4

sin(5π/3)=

• 1/2

• -√3/2

• √3/2

• -1/2

For what angles are sine and cosine the same?

• 0^o

• 45^o and 135⁰

• 45^o and 225⁰

• 45^o and 315⁰

The unit circle...

• Has center at (1,1)

• Has a circumference of 1

• Has a diameter of 1

• Has a radius of 1

What is the value of theta in degrees?

• 30

• 45

• 60

• 90

What is the number of degrees that goes in the red circle?

• 30

• 45

• 60

• 120

What is the measure of angle theta in degrees?

• 120

• 30

• 45

• 60

What are the coordinates that go above the red line?

• (√3/2,1/2)

• (√2/2,1/2)

• (√2/2,√2/2)

• (1/2,√3/2)