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9.5 Trigonometric Ratios Sin-Cos-Tan. What is Trigonometry? Trigonometry (from Greek trigōnon "triangle" + metron "measure") is a branch of mathematics.

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Presentation on theme: "9.5 Trigonometric Ratios Sin-Cos-Tan. What is Trigonometry? Trigonometry (from Greek trigōnon "triangle" + metron "measure") is a branch of mathematics."— Presentation transcript:

1 9.5 Trigonometric Ratios Sin-Cos-Tan

2 What is Trigonometry? Trigonometry (from Greek trigōnon "triangle" + metron "measure") is a branch of mathematics that studies triangles and the ratios between their sides and the angles between these sides. The field evolved during the third century BC as a branch of geometry used extensively for astronomical studies. It is also the foundation of the practical art of surveying.Greektrigōnon metron http://en.wikipedia.org/wiki/Trigonometry

3 Right Angle Trigonometry The Ratio used in Right Angle Trigonometry are Sine – Sin Cosine – Cos Tangent - Tan

4 Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

5 Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

6 Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

7 How to Remember the Ratio Chief SOH – CAH - TOA

8 Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

9 Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

10

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