Unit Circle Review

Formulas

100

This trigonometry ratio uses the fraction adjacent over hypotenuse.

What is cosine(x)

200

This equation is a way of finding the x-coordinate on a unit circle.

What is x=cos(theta)

300

This trigonometry ratio uses the fraction hypotenuse over opposite.

What is cosecant(theta)

400

This equation gives us the y-coordinate on the unit circle.

What is y=sin(theta)

500

DAILY DOUBLE

This equation uses the terms of sine and cosine to find another trig. ratio.

Coordinates

100

sin 90 degrees

What is 1

200

sine of 150 degrees

What is 1/2 or .5

300

DAILY DOUBLE

What is the cosine of 390 degrees?

sqrt(3)/2

400

The cosine of 150 degrees.

What is - sqrt(3)/2

500

sine of 315 degrees.

What is -sqrt(2)/2

Quadrants

100

What quadrant will find 

(-1/2,-sqrt3/2)

What is quadrant 3?

200

In what quadrant will you find 

(7pi)/6

What is quadrant 3?

300

In what quadrant will you find 520 degrees?

What is quadrant 2?

400

In what quadrant will you find 

(sqrt2/2,-sqrt2/2)

What is quadrant 4?

500

In what quadrant will you find 

(7pi)/4?

What is quadrant 4?

Radians

100

The conversion from this radian measure to degrees is 180 degrees.

What is pi

200

The conversion from this radian measure to degrees is 90 degrees.

What is pi/2.

300

The conversion from this radian measure to degrees is 135 degrees.

What is 3*pi/4.

400

The conversion from this radian measure to degrees is 330 degrees.

What is 11*pi/6.

500

The conversion from this radian measure to degrees is 390 degrees.

What is

(13pi)/6?

(13pi)/6.

More Coordinates

100

What is the cos(240)?

What is 

-1/2

200

What is the cos(

pi/4?

What is

sqrt2/2

?

300

What is the cos(270)

What is 0?

400

What is the cos(225)

What is

-sqrt2/2

?

500

What is the cos(

What is

-1/2

?