The Pythagorean theorem is one of the most ancient theorems of mathematics. The Pythagorean theorem states that in a right triangle (a triangle with a 90 degree angle), the sum of the squares of the lengths of the two legs is equal to the square of the...

The Pythagorean number theorem is the basis for modern number theory. Modern number theory is that branch of mathematics concerned with properties and relationships of numbers. This includes much of mathematics and more specifically mathematical...

In mathematics, the Pythagorean theorem (AmE) or Pythagoras' theorem (BrE) is a relation in Euclidean geometry among the three sides of a right triangle. The theorem is named after the Greek mathematician Pythagoras, who by tradition is credited with...