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 transcript:

9.5 Trigonometric Ratios Sin-Cos-Tan

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

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

Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

How to Remember the Ratio Chief SOH – CAH - TOA

Right Angle Trigonometry The Ratio used in Right Angle Trigonometry

Right Angle Trigonometry The Ratio used in Right Angle Trigonometry