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Trigonometry

This is a review activity to cover skills and concepts.

TermDefinition
reference angle It is the angle to the x-axis, which is never greater than 90 degrees.
cosine Defined as: adjacent over hypotenuse.
sine Defined as: opposite over hypotenuse.
tangent Defined as: opposite over adjacent.
cosecant Defined as: hypotenuse over opposite.
secant Defined as: hypotenuse over adjacent.
cotangent Defined as: adjacent over opposite.
degrees It is a unit of measure for angles: 360 of them is one revolution.
radians It is a unit of measure for angles: 2pi of them is one revolution.
amplitude It is half the height of a sinusoid.
period It is the length of one horizontal pattern of a sinusoid.
phase shift The horizontal movement of a trigonometric function.
vertical shift The vertical movement of a trigonometric function.
cosine It is the x-value of the corresponding angle on a unit circle.
sine It is the y-value of the corresponding angle on a unit circle.
tangent It is y/x of the corresponding angle on a unit circle.
Created by: karadimos