Radians to Degrees
Degrees to Radians
In which quadrant is the terminal side of the angle
Reference Angle
Trig Definitions
Exact Values at Quadrant Angles
100

pi/6

What is 30 degrees?

100

60 degrees

What is 

pi/3?

100

-pi/3

What is quadrant 4?

100

225 degrees

What is 45 degrees?

100

the radius of the unit circle

What is 1?

100

sin((3pi)/2)

What is -1?

200

(4pi)/3

What is 240 degrees?

200

300 degrees

What is 

(5pi)/3?

200

(3pi)/4

What is quadrant 2?

200

(7pi)/4

What is 

pi/4?

200

unit circle definition of tangent

What is 

y/x?

200

tan(pi/2)

What is undefined?

300

(11pi)/6

What is 330 degrees?

300

150 degrees

What is 

(5pi)/6?

300

(-7pi)/6

What is quadrant 2?

300

120 degrees

What is 60 degrees?

300

reciprocal of secant

What is cosine?

300

cos(pi)

What is -1?

400

(3pi)/2

What is 270 degrees?

400

225 degrees

What is 

(5pi)/4?

400

(5pi)/3

What is quadrant 4?

400

(4pi)/3

What is 

pi/3?

400

shortest distance from an angle to the x-axis

What is a reference angle?

400

csc(2pi)

What is undefined?

500

(3pi)/4

What is 135 degrees?

500

720 degrees

What is 

4pi?

500

-(8pi)/3

What is quadrant 3?

500

(13pi)/5

What is 

(2pi)/5?

500

measures the arc length of an angle

What is a radian?

500

tan(6pi)

What is 0?
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