Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The ...

From trigonometry to Pythagoras' theorem, there are plenty of mathematical terms you might remember from school – but could you actually answer a question now? After a survey found half of British ...

Some mathematicians have stated that proving the theorem using trigonometry is impossible without circular reasoning, because trigonometry relies so much on the theorem itself. Two New Orleans high ...