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# Chapter 13 - Algebra

Across
Angles with terminal sides that coincide
trigonometric function that gives you opposite over adjacent
a region of a circle that is bounded by two radii and an arc of the circle
trigonometric function that gives you adjacent over opposite
An angle whose vertex is at the origin and its initial side lies on the positive x-axis
the measure of an angle in standard position whose terminal side intercepts an arc of length r
the angle whose vertex is at the center of a circle
positive angle that the angle makes with the x-axis. (i.e. 60 for 120)
Down
trigonometric function that gives you opposite over hypotenuse
trigonometric function that gives you hypotenuse over opposite
starting side of an angle
angle in standard position whose terminal side lies on an axis. This angle measure is always multiples of 90
ending side of an angle
has a radius of 1 and a center of (0,0)
trigonometric function that gives you hypotenuse over adjacent
trigonometric function that gives you adjacent over hypotenuse