Honors Geometry Trig Vocab

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8 Terms

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Degree

The unit measure for angles

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Angle of depression

the angle formed by the line of sight and the horizontal plane for an object below the horizontal.

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Angle of Elevation

the angle formed by the line of sight and the horizontal plane for an object above the horizontal.

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Coterminal

two angles that share the same initial and terminal sides

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Trigonometric ratios

Sin(()) = Opposite / Hypotenuse

Cos(()) = Adjacent / Hypotenuse

Tan(()) = Opposite / Adjacent

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Inverse Trigonometric Ratios

sin^-1 or arcsin, cos^-1 and arccos, tan^-1 or arctan. Used to undo sine, cosine, and tangent in an equation

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Law of sines

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Law of cosines