Pythagorean Theorem

An example of the Pythagorean Theorem is a 3 x 4 x 5 triangle - 3 squared is 9, 4 squared is 16, and 5 squared is 25. 9 plus 16 equals 25.

**MLA Style**

"Pythagorean theorem." YourDictionary, n.d. Web. 24 May 2018. <http://www.yourdictionary.com/pythagorean-theorem>.

**APA Style**

Pythagorean theorem. (n.d.). Retrieved May 24th, 2018, from http://www.yourdictionary.com/pythagorean-theorem

## Pythagorean theorem

**MLA Style**

"Pythagorean theorem." YourDictionary, n.d. Web. 24 May 2018. <http://www.yourdictionary.com/pythagorean-theorem>.

**APA Style**

Pythagorean theorem. (n.d.). Retrieved May 24th, 2018, from http://www.yourdictionary.com/pythagorean-theorem

## Pythagorean theorem

noun

**Pythagorean theorem**

The Pythagorean theorem is a2 + b2 = c2.

**MLA Style**

"Pythagorean theorem." YourDictionary, n.d. Web. 24 May 2018. <http://www.yourdictionary.com/pythagorean-theorem>.

**APA Style**

Pythagorean theorem. (n.d.). Retrieved May 24th, 2018, from http://www.yourdictionary.com/pythagorean-theorem

## pythagorean-theorem

- (geometry) A mathematical theorem which states that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of those of the two other sides.
*The Pythagorean theorem only applies to right triangles.*

- (functional analysis) A generalization of the Pythagorean theorem for Euclidean triangles to Hilbert spaces

Named after Pythagoras, from Ancient Greek *Î Ï…Î¸Î±Î³ÏŒÏÎ±Ï‚* (Pythagoras), Greek mathematician and philosopher who by tradition is credited with theorem's discovery and proof.

**MLA Style**

**APA Style**