Show:
Formulas
Coordinates
Reference Angle
Radians
Coterminal Angles
100
This trigonometry ratio uses the fraction adjacent over hypotenuse.
What is cosine(x)
100
sin 90 degrees
What is 1
100
The angle corresponding to this reference angle is 150 degrees.
What is 30 degrees.
100
The conversion from this radian measure to degrees is 180 degrees.
What is pi/6.
100

Give a positive coterminal angle for 10˚

370 degree

200

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

What is x=cos(theta)

200
sine of 150 degrees
What is 1/2 or .5
200
The angle corresponding to this reference angle is 45 degrees.
What is 45 degrees
200
The conversion from this radian measure to degrees is 90 degrees.
What is pi/2.
200

Find a positive coterminal angle for -5825˚

295˚, 655˚, 1015 degrees, 1375, 1735, 2095

300

This trigonometry ratio uses the fraction hypotenuse over opposite.

What is cosecant(theta)

300

DAILY DOUBLE

What measure in radians does the coordinate (0, -1) represent? 

The cosine of 3*pi/2.

300
The angle corresponding to this reference angle is 240 degrees.
What is 60 degrees
300
The conversion from this radian measure to degrees is 135 degrees.
What is 3*pi/4.
300

Find a negative coterminal angle for 89π/17

-13π/17 or -137.65 degrees

400
This equation gives us the y-coordinate on the unit circle.
What is y=sin(theta)
400
The sine of 4*pi/3.
What is - sqrt(3)/2
400
The angle corresponding to this reference angle is 2*pi/3.
What is 60 degrees ( or pi/3).
400
The conversion from this radian measure to degrees is 330 degrees.
What is 11*pi/6.
400

In what quadrant is the angle 103π/15 located?

Quadrant II

Coterminal Angle is 120 Degrees

500

This trigonometry ratio uses the fraction opposite over adjacent 

tangent or tan

500

sine of 7*pi/4.

What is -sqrt(2)/2

500
The angle corresponding to this reference angle is 7*pi/4.
What is 45 degrees (or pi/4).
500
The conversion from this radian measure to degrees is 390 degrees.
What is 13*pi/6.
500

In what quadrant is the angle 7 located?

Quadrant 1