TRIG VOCAB WORDS
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Radians | the measure of a central angle subtending an arc equal in length to the radius: equal to 57.2958°
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| Degrees | A division of a circle, equal to 1 / 360 of its circumference.
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| Coterminal Angle | Two angles are coterminal if they are drawn in the standard position and both have their terminal sides in the same location.
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| Unit Circle | A unit circle is a circle that has a radius of one unit.
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| Reference Angle | The smallest angle that the terminal side of a given angle makes with the x-axis.
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| Sine | Sine= Opposite/Hypotenuse
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| Cosine | Cosine= Adjacent/Hypotenuse
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| Tangent | Tangent= Opposite/Adjacent
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| Cosecant | Cosecant= Hypotenuse/Opposite
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| Secant | Secant= Hypotenuse/Adjacent
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| Cotangent | Cotangent= Adjacent/Opposite
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| Inverse |
(of a proportion) containing terms of which an increase in one results in a decrease in another. A term is said to be in inverse proportion to another term if it increases (or decreases) as the other decreases (or increases).
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| Arcsin |
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| Arccos | The arccos function is the inverse of the cosine function.
It returns the angle whose cosine is a given number.
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| Arctan | The arctan function is the inverse of the tangent function.
It returns the angle whose tangent is a given number.
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| Law Of Sines | a law stating that the ratio of a side of a plane triangle to the sine of the opposite angle is the same for all three sides.
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| Law Of Cosines | a law stating that the square of a side of a plane triangle is equal to the sum of the squares of the other two sides minus twice the product of the other sides multiplied by the cosine of the angle between them.
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
lunawolfe815
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