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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 |