In Mathematics, Pythagoras Theorem as it is called in British English and Pythagorean Theorem in American English defines a relation between the three sides of a right angle triangle. The Pythagorean Theorem is named after the Greek Mathematician Pythagoras, who by tradition is credited with its discovery and proof.

It states that in any right triangle, the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares whose sides are the two legs (the two sides that meet at a right angle).

The theorem can also be written as an equation:

Where,

*c* represents the length of the hypotenuse and

*a* and

*b* represent the lengths of the other two sides.

The Pythagorean Theorem relates the areas of squares on the sides of the right triangle.