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Videos, worksheets, stories and songs to help Grade 8 students learn how the Pythagorean Theorem can be proven algebraically, geometrically and visually.

Pythagorean Theorem Proofs:

The Pythagorean theorem states that in a right triangle the sum of its squared legs equals the square of its hypotenuse. The Pythagorean theorem is one of the most well-known theorems in mathematics and is frequently used in Geometry proofs. There are many examples of Pythagorean theorem proofs in your Geometry book and on the Internet.

How to prove the Pythagorean Theorem using Algebra and geometry to show the area of the smaller square plus the area of four triangles is equal to the area of the larger square.

Animated rendition of Perigal's dissection proof of the classic Pythagorean Theorem.

Another Pythagorean Theorem Proof

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.