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12 cards from this deck
Right-angled triangles only
0.5
Longest side, opposite right angle
Side opposite angle θ\thetaθ
Side next to θ\thetaθ, not hypotenuse
OH\frac{O}{H}HO (Opposite/Hypotenuse)
AH\frac{A}{H}HA (Adjacent/Hypotenuse)
OA\frac{O}{A}AO (Opposite/Adjacent)
Sin = Opposite/Hypotenuse
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent
Use inverse: sin−1\sin^{-1}sin−1
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