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Trig

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Radians   A unit of measure for angles  
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Degrees   Another way to measure angles symbolizes by a small, raised circle  
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Quadrant angle   The terminal side lays on the x-axis or y-axis  
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Coterminal angle   Two angles with the same initial and terminal sides  
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Unit circle   A circle with the radius of one  
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reference angle   Always have a measure between 0 and (pie divided by two)  
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Sine   The trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse.  
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Cosine   The trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.  
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Cosecant   The ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine.  
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Tangent   A straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.  
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Secant   A straight line that cuts a curve in two or more parts; the reciprocal of cosine  
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Cotangent   The length of the adjacent side divided by the length of the opposite side  
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Inverse   takes the ratio “opposite/hypotenuse” and gives us the angle  
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Arcsin    
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