There’s a delightful mathematical moment in the movie Merry Andrew, when Danny Kaye, playing schoolmaster Andrew Larabee, breaks into song to teach the Pythagorean theorem. I was reminded of this ...

Trigonometry can be used to find the length of a side in a triangle. Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing side in a right-angled ...

The most famous theorem of the Ionian philosopher, Pythagoras, states that the square on the hypotenuse of a right triangle is equal to the sum of the squares on the two legs (or a² + b² = c²). If you ...