Sine, Cosine and Tangent

Sine, Cosine and Tangent on the unit circle

Sine, Cosine and Tangent on a right triangle

Here you can find all articles and exercises about the topic sine, cosine and tangent on a right triangle. Since the sine, cosine and tangent are defined by the length ratios within the right triangle, you will also find the basic terms (cathetus and hypotenuse) of the right triangle here again.
Sine and Cosine theorem

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