The Pythagorean theorem is usually taught as the brainchild of one Greek philosopher: Pythagoras. It’s one of the simplest, ...

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 ...

Ancient Indian mathematician Baudhayana was the first person to formulate a theorem on right-angled triangles that in its modern form came to be associated with Greek mathematician Pythagoras, a newly ...

If the squares of the two shorter sides add up to the square of the hypotenuse, the triangle contains a right angle.

It is important to remember other angles rules, such as angles on a straight line add up to 180°, and to recognise angles in parallel lines. Make sure you are confident in applying Pythagoras’ theorem ...

CBSE Class 10 Triangles Notes: Class 10 Chapter 6 Triangles revision notes have been provided to you in this article. These short notes on quadratic equations will further add to your knowledge ...