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Chapter 8 Trig
Unit 2 Geometry Chapter 8 Trigonometry
Question | Answer |
---|---|
Angle of Depression | The angle formed by a horizontal line and a line of sight to a point below. |
Angle of Elevation | The angle of formed by a horizontal line and a line of sight to a point above. |
Component Form | The form of a vector that lists the vertical and horizontal change from the initial point to the terminal point. |
Cosine | The ratio of the length of the leg adjacent to an angle to the length of the hypotenuse in a right triangle. |
Direction | The angle made by a vector with a horizontal line, measured counterclockwise from the positive x-axis. |
Equal Vectors | Two vectors that have the same magnitude and the same direction. |
Geometric Mean | For positive numbers a and b, the positive number x such that a/x = x/b. |
Magnitude | The length of a vector. |
Parallel Vectors | Vectors with the same or opposite direction. |
Resultant Vector | The vector that represents the sum of two given vectors. |
Sine | The ratio of the length of the leg opposite an angle to the length of the hypotenuse in a right triangle. |
Tangent | The ratio of the length of the leg opposite an angle to the length of the leg adjacent to an angle in a right triangle. |
Trigonometric Ratio | A ratio of two sides of a right triangle. |
Vector | A quantity that has both magnitude and direction. |