Theorem of Pythagoras, a2 + b2 = c2, Hypotenuse, Longest side of a right-angled triangle., Right-angled triangle, A triangle with a 900 angle., Sine (sin), Opposite divided by hypotenuse., Cosine (cos), Adjacent divided by hypotenuse., Tangent (tan), Opposite divided by adjacent., Adjacent, Next to..

Trigonometry Definitions

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