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**In this module, you can study ****the formula and concept of the Pythagorean Theorem; ****how to use the Pythagorean Theorem to figure out the length of any side of a right triangle.**

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The Pythagorean Theorem only works with right triangles, but you can use it in many different ways. For example, carpenters use the Pythagorean Theorem with building lines to set out a house foundation to ensure the foundations are square.

The formula * a^{2} + b^{2} = c^{2} *means

**Study and practice**

- Read about Pythagoras' TheoremTeacherschoice.com.au have created a wonderful site for studying the Pythagorean Theorem. Here you will find a clear explanation, practice problems and a downloadable tool for practicing.
- Study the Pythagorean TheoremMath.com have put together a full online lesson for the Pythagorean Theorem. You'll learn a little about the history of the theorem, see some worked examples and practice a few of your own.
- Download a Pythagorean Theorem WorksheetCreate and print your own downloadable worksheet at math-aids.com. If you tick the box at the bottom of the page, your worksheet will contain worked-out answers.
- Quiz yourself on the Pythagorean TheoremTake a practice quiz at onlinemathlearning.com. HINT: The quiz asks you to calculate values for side a, b or c. C is always the hypotenuse in this quiz (the longest side), so be sure the set your formula up correctly.

Use these search terms to find your own resources:

*Pythagorean TheoremPythagoras' Theorem*

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