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Geometry Chapter 9
McDougal Littell Vocab
Question | Answer |
---|---|
Right triangles whose angle measures are 45-45-90 degrees or 30-60-90 degrees | special right triangles |
A ratio of the lengths of two sides of a right triangle. | trigonometric ratio |
Side opposite over hypotenuse | sine |
Side adjacent over hypotenuse | cosine |
Side opposite over side adjacent | tangent |
When you stand and look you up at a point in the distance, the angle that your line of sight makes with a line drawn horizontally. | angle of elevation |
Determine the measurements of all sides and angles of a right triangle. | solve a right triangle |
The distance from the initial point to the terminal point of a vector. | magnitude of a vector |
Determined by the angle that the vector makes with a horizontal line. | direction of a vector |
Two vectors that have the same magnitude and direction. | equal vectors |
Two vectors that have the same or opposite directions. | parallel vectors |