| A | B |
| sine | opposite/hypotenuse |
| cosine | adjacent/hypotenuse |
| tangent | opposite/adjacent |
| 180º | π radians |
| 360º | 2π radians |
| example of angular velocity | 1500 rpm |
| example of linear velocity | 25 mph |
| vertical directed distance from a point on a unit circle to the x-axis | sine |
| horizontal directed distance from a point on a unit circle to the y-axis | cosine |
| a way to measure an angle | degrees |
| a way to measure an angle | radians |
| a way to measure an angle | revolutions |
| origin of the term "radian" | "RADIus" + "ANgle" |
| period | the length of the smallest interval which contains a cycle of a graph |
| amplitude | 0.5•(Maximum - Minimum) |
| radian | the measure of an angle made by connecting the center of a circle to the endpoints of an arc that is 1 radius in length |