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 ...

The Mathematical Gazette is the original journal of the Mathematical Association and it is now over a century old. Its readership is a mixture of school teachers, college and university lecturers, ...

Calculating the traverse that represents a parcel can benefit significantly from something that is not properly taught: The use of azimuths. What is an azimuth? It is a horizontal angle of a line, ...