Bearings are angles used in navigation. Missing information about bearings can be worked out using the sine and cosine rules. Find out here. National 5 Maths - Using bearings in trigonometry. revision ...

The class Trigonometry: Sine, Cosine, and Tangent discusses the three basic ratios that are the basis for trigonometry. Trigonometry is based on the specific relationships between the sides and angles ...

The Pythagorean Theorem—discovered by the Greek mathematician Pythagoras in the 6th century BCE—is a cornerstone of mathematics. Simply stated as a 2 + b 2 = c 2, the theorem posits that the sum of ...

Mathematician Eugenia Cheng explores the uses of math beyond the classroom. Read more columns here. I recently needed to measure the angle of my computer keyboard, because I currently have it propped ...