MaTh study guide
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Special Right Triangles
Triangle Labels
Sines
Cosines
Tangents
Finding Side Lengths
Finding Angles
A way to remember
Solving right triangles
Soh
CAH
Toa
Cosine: Adjacent/Hypotenuse
Parts are shown in "TRIANGLE LABELS."
Law of Cosine
This law can only be used if: you have all 3 sides, or if you have 2 sides and an included angle