# The Unit Circle

### 43 terms by etetet103

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### Unit Circle in 45 degrees

0, 45, 90, 135, 180, 225, 270, 315, 360

### Unit Circle in pi/4

0, pi/4, pi/2, 3pi/4, pi, 5pi/4, 3pi/2, 7pi/4, 2pi

### Unit Circle in 30 degrees

0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360

### Unit Circle in pi/6

0, pi/6, pi/3, pi/2, 2pi/3, 5pi/6, pi, 7pi/6, 4pi/3, 3pi/2, 5pi/3, 11pi/6, 2pi

pi/4

pi/2

3pi/4

pi

5pi/4

3pi/2

7pi/4

2pi

theta

180-theta

theta-180

360-theta

*pi/180

*180/pi

### 45 degrees (coordinates)

(root2/2, root2/2)

(0,1)

### 135 degrees (coordinates)

(-root2/2, root2/2)

(-1,0)

### 225 degrees (coordinates)

(-root2/2,-root2/2)

(0,-1)

### 315 degrees (coordinates)

(root2/2,-root2/2)

(1,0)

(root3/2,1/2)

(1/2,root3/2)

(-1/2,root3/2)

(-root3/2,1/2)

(-root3/2,-1/2)

(-1/2,-root3/2)

(1/2,-root3/2)

(root3/2,-1/2)

pi/6

pi/3

2pi/3

5pi/6

7pi/6

4pi/3

5pi/3

11pi/6

Example: