Trigonometry explores the relationship between sides and angles in right-angled triangles. The hypotenuse is the longest side and is always opposite the right angle. The opposite side is the side ...

Most trigonometry students look at triangles on a flat surface. However, people from ancient astronomers to modern navigators calculated the arc lengths and angles of triangles on a sphere. They used ...

Trigonometry is a branch of mathematics that lays out how the sides, lengths and angles in a triangle are related, and as ...

the size of angles) and mathematical magic can deliver unknown quantities. Trigonometry—from the Greek words for “triangle” ...