click below
click below
Normal Size Small Size show me how
Year 10 Trigonometry
| Term | Definition |
|---|---|
| trigonometric ratio | the ratio of two sides of a right angled triangle |
| sine ratio | the ratio of the opposite side to the hypotenuse |
| cosine ratio | the ratio of the adjacent side to the hypotenuse |
| tangent ratio | the ratio of the opposite side to the adjacent side |
| angle of elevation | is the angle of looking up, measured from the horizontal. |
| angle of depression | is the angle of looking down, measured from the horizontal. |
| bearing | an angle measurement used to describe precisely the direction of one location from another. |
| hypotenuse | the longest side of a right angled triangle and is always opposite the right angle. |
| opposite side | the side directly opposite the given angle. |
| adjacent side | the side next to, or an arm of, the given angle. |
| clinometer | an instrument for measuring an angle of elevation or depression |
| three-figure bearings, | angles from 000° to 360° to show the amount of turning measured clockwise from north |