Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing angle in a right-angled triangle when two sides are known. An understanding of the three ...

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles. Trigonometry is found all throughout geometry, as every straight-sided shape may be ...

Classical trigonometry calls the separation between two lines an "angle", which is the length of a circular arc between two lines.

If we know the length of one side of a triangle – the baseline – and the two angles at its ends, we can use trigonometry, the mathematics of triangles, to calculate the lengths of the other ...