The Unit Circle
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43 terms
English | Latin |
|---|---|
 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 |
| 45 degrees (radians) | pi/4 |
| 90 degrees (radians) | pi/2 |
| 135 degrees (radians) | 3pi/4 |
| 180 degrees (radians) | pi |
| 225 degrees (radians) | 5pi/4 |
| 270 degrees (radians) | 3pi/2 |
| 315 degrees (radians) | 7pi/4 |
| 360 degrees (radians) | 2pi |
| Find coterminal angles? | add or subtract 360/2pi |
| Quadrant I Reference angle | theta |
| Quadrant II Reference angle | 180-theta |
| Quadrant III Reference angle | theta-180 |
| Quadrant IV Reference angle | 360-theta |
| Converting degrees to radian | *pi/180 |
| Converting radian to degrees | *180/pi |
| 45 degrees (coordinates) | (root2/2, root2/2) |
| 90 degrees (coordinates) | (0,1) |
| 135 degrees (coordinates) | (-root2/2, root2/2) |
| 180 degrees (coordinates) | (-1,0) |
| 225 degrees (coordinates) | (-root2/2,-root2/2) |
| 270 degrees (coordinates) | (0,-1) |
| 315 degrees (coordinates) | (root2/2,-root2/2) |
| 0/360 degrees (coordinates) | (1,0) |
| 30 degrees (coordinates) | (root3/2,1/2) |
| 60 degrees (coordinates) | (1/2,root3/2) |
| 120 degrees (coordinates) | (-1/2,root3/2) |
| 150 degrees (coordinates) | (-root3/2,1/2) |
| 210 degrees (coordinates) | (-root3/2,-1/2) |
| 240 degrees (coordinates) | (-1/2,-root3/2) |
| 300 degrees (coordinates) | (1/2,-root3/2) |
| 330 degrees (coordinates) | (root3/2,-1/2) |
| 30 degrees (radians) | pi/6 |
| 60 degrees (radians) | pi/3 |
| 120 degrees (radians) | 2pi/3 |
| 150 degrees (radians) | 5pi/6 |
| 210 degrees (radians) | 7pi/6 |
| 240 degrees (radians) | 4pi/3 |
| 300 degrees (radians) | 5pi/3 |
| 330 degrees (radians) | 11pi/6 |
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