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 ...

On top of the bag fees and other charges, families traveling this summer may have to pay extra just to sit next to one another. Airlines are reserving a growing number of seats for elite customers or ...

Airlines are reserving more seats for passengers willing to pay extra to be near a window, aisle or the front of the plane. That's making it harder for many families to sit together without coughing ...

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, ...