What is white’s best move? The lesson this week is that chess is often about finding the right angles. Reach Eric Morrow at ...

The sides of right-angled triangles are labelled opposite, hypotenuse and adjacent. Trigonometry explores the relationship between sides and angles in right-angled triangles. The hypotenuse is the ...

Right Angle Entertainment has announced veteran live entertainment industry executive Joe Ruffner has been promoted to executive director. His responsibilities will entail the oversight and ...