## Introduction

Introduction

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Pythagorean Theorem

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Pythagorean Theorem

## Use the formula

Use the formula

It can be used to calculate the length of the 3rd side of the triangle - called hypotenuse - if we know the length of the two perpendicular sides

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hypotenuse

## Pythagorean Triples

Pythagorean Triples

Here are some Pythagorean triple, in other words cases for whole numbers where the formula works

## Get a feel for it

Get a feel for it

Get a feel of the proof

## Proofs

Proofs

3 different proofs

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### Dudney’s proof

Dudney’s proof

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photo of Euclid

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photo of Einsten

Leonardo Da Vinci’s proof

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photo of Leonardo da Vinci

Mamikon’s proof