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Chapter ... Geometry

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Word
Definition
Pythagorean Triple   a set of positive integers that satisfy the equation, a^2+b^2=c^2  
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Trigonomic Ratio   The ratio of two lengths of two sides in a right triangle.  
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Tangent   The ratio of the lengths of the legs in a right triangle.  
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Sine   Trigonomic ratio for acute angles that involves the lengths of the hypotonuse of a right triangle.  
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Cosine   Trigonomic ratio for acute angles that involves the lengths of the hypotonuse of a right triangle.  
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Angle of Elevation   If you look up at an object, the angle your line of sight makes with a horizontal line.  
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Angle of Depression   If you look down at an object, the angle your line of sight makes with a horizontal line.  
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Solve a Right Triangle   to find the measures of all angles and sides.  
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Inverse of Tangent   an inverse tangent ratio, abbreviated as tan^-1. For acute angle A, if tan A = x, then tan^-1(x) = m angleA  
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Inverse of Cosine   an inverse tangent ratio, abbreviated as cos^-1. For acute angle A, if cos(A)=Z, then cos^-1(z) = m angle A.  
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Inverse of Sine   An inverse trigonomic ratio, abbreviated as sin^-1. For acute acute angle A, if A = y, then sin^-1(y) = m angle A.  
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