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# Trigonometric Ratios

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## Kelsey Mack

on 22 November 2013

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#### Transcript of Trigonometric Ratios

Trigonometric Ratios
Definitions
Trigonmetric Ratios: A ratio of the lengths of two sides of a right triangle
The Different Parts
Formulas
Sine: sin A=
side opposite <A

hypotenuse
Acronyms

Soh: Sine Opposite Hypotenuse
Some Old Hag
Caught Another Hag
Tripping Over Apples
side opposite
angle
<A

angle<B
Hypotenuse

side opposite <B
Cosine: cos A=
hypotenuse
Tangent: tan A=
side opposite <A

Angle of elevation: When you stand and look up at a point in the distance, the angle that your line of sight makes with a line drawn horizontally
Examples
5
12
13
Sine: 12 = .9231
13
Cosine: 5 = .3846
13
Tangent: 12 = 2.4
5
Practice
25
12
20
1.)
Sine?
14
11
9
2.)
Cosine?
30
28
22
3.)
Tangent?