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Exercises: Sine, Cosine and Tangent on a right triangle

This sketch shows a right triangle, not true to size, with height h=8cm and angles α=65 and β=80.

Calculate the side lengths a and b.

a=tan(α)ha=tan(65)8cma=17.16cmb=tan(β)hb=tan(80)8cmb=45.37cm

Image

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