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Trigonometry & Right Triangles
Jarrod's Review of Right Triangles
11
Mathematics
11th Grade
02/17/2015
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Term

[image]

Sine (x) = (?/?)

 Definition
b / c
Term

[image]

Cosine X = (?/?)

 Definition
a / c
Term

[image]

Tangent X = (?/?)

 Definition
b / a
Term
The sine of an angle of a right triangle is the ratio of...
 Definition
the opposite side divided by the hypotonuse.
Term
The cosine of an angle in a right triangle is the ratio of...
 Definition
the adjacent side divided by the hypotonuse.
Term
The tangent of an angle in a right triangle is the ratio of...
 Definition
the opposite side divided by the adjacent side.
Term

The Pythagorean theorem states that...

 

 Definition
a2 + b2 = c2
Term

[image]

If X=35°, and c=12 in; how would you find the length of b?

 Definition
sine (35°) * 12 = ?
Term

[image]

If X=35°, and c=12 in; how would you find the length of a?

 Definition
Cosine (35°) * 12 in = ?
Term

[image]

If X=35°, and a=10 in; how would you find the length of b?

 Definition
Tangent (35°) * 10 = ?
Term

[image]

If X=35°, and b=10 in; how would you find the length of a?

 Definition
10 / Tangent (35°) = ?
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