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Introducing Trigonometry. 30 º Hypotenuse Adjacent Opposite.

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Presentation on theme: "Introducing Trigonometry. 30 º Hypotenuse Adjacent Opposite."— Presentation transcript:

1 Introducing Trigonometry

2 30 º Hypotenuse Adjacent Opposite

3 We use 3 functions Sine or SIN Cosine or COS Tangent or TAN

4 Investigation To find a relationship between the 3 functions and the ratios of the lengths of a right angled triangle.

5 TriangleHypotenuseOppositeO / HAngle xSin x

6 TriangleHypotenuseOppositeO / HAngle xSin x

7 53.2 º Hypotenuse Adjacent Opposite

8 TriangleHypotenuseAdjacent A / HAngle xCos x

9 Sin X = O / H Cos X= A / H Tan X = O / A


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