Trigonometry

Trigonometry

1. Is all about triangles

   • Trigonometry helps us to find angles and distances
     • The triangle of most interest is the right angled triangle
       • Adjacent
         • Next to the angle
       • Opposite
         • Opposite to the angle
           • The main functions in trigonometry
             • are
               • Sine
                 • Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides
               • Cosine
               • Tangent
       • Hypotenuse
         • The longest side of the triangle

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