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Basic Ratios (for angle ΞΈ)
sin ΞΈ
opposite / hypotenuse
cos ΞΈ
adjacent / hypotenuse
tan ΞΈ
opposite / adjacent
Solving for a side
opp =
hyp Γ sin ΞΈ
adj =
hyp Γ cos ΞΈ
opp =
adj Γ tan ΞΈ
hyp =
opp / sin ΞΈ
hyp =
adj / cos ΞΈ
adj =
opp / tan ΞΈ
Key angle values
30Β°
sin = 1/2
cos = β3/2
tan = 1/β3
45Β°
sin = β2/2
cos = β2/2
tan = 1
60Β°
sin = β3/2
cos = 1/2
tan = β3
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