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2-4 The Tangent Ratio
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Terms in this set (13)
Tangent Ratio
The ratio comparing the length of the side opposite the angle to the length of the side adjacent to the angle in a right triangle.
Trigonometry
The study of angles and triangles.
Sine Ratio
The ratio comparing the length of the side opposite the angle to the length of the hypotenuse in a right triangle.
Cosine Ratio
The ratio comparing the length of the side adjacent to the angle to the length of the hypotenuse in a right triangle.
Arms
Either of the two lines that form the angle.
Adjacent Side
The side that forms one of the arms of the angle being considered, but is not the hypotenuse.
Opposite Side
The side that does not form one of the arms of the angle being considered. The side across from the angle being considered.
Ratio
A comparison of two quantities measured in the same units.
Right Angle
An angle that measures 90 degrees.
Right Triangle
A triangle that has a 90 degree angle.
Legs
The two shorter sides of a right triangle. The sides adjacent to the right angle.
Hypotenuse
The longest side of the right triangle. The side opposite the right angle in a right triangle.
Pythagorean Theorem
In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the legs. For a right triangle with legs a and b and hypotenuse c, a² + b² = c²
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