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Introducing Trigonometry. Opposite. Hypotenuse. 30 º. Adjacent. We use 3 functions. Sine or SIN Cosine or COS Tangent or TAN. Investigation. To find a relationship between the 3 functions and the ratios of the lengths of a right angled triangle. Opposite. Adjacent.
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Opposite Hypotenuse 30º Adjacent
We use 3 functions • Sine or SIN • Cosine or COS • Tangent or TAN
Investigation • To find a relationship between the 3 functions and the ratios of the lengths of a right angled triangle.
Opposite Adjacent Hypotenuse 53.2º
Sin X = O / H • Cos X= A / H • Tan X = O / A