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I have a school assignment, and it requires me to list a few of the real world applications of Pythagoras Theorem. However, most of the ones I found are rather generic, and not special at all.

What are some of the real world applications of Pythagoras' Theorem?

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    There's [shadow reckoning](http://www.brighthub.com/engineering/civil/articles/46130.aspx), and [figuring out how far away stars are](http://www.utpa.edu/dept/physci/labs/astr1401/lab9i.pdf)...2011-07-24
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    Architectural engineering, satellite positioning, physical triangulation, your personal [path efficiency](http://xkcd.com/85/)...2011-07-24
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    Suppose you have a 13-ft ladder leaning against a wall, and its base is moving away from the wall at a rate of...2011-07-24
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    say your building a garage and you want to stake out a rectangle. you might want to measure 3ft, 4ft down some string outline and hope you get 5ft across the diagonal. ive seen builders who dont know what a pythagoras is know at least one triple...2011-07-24
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    Please list what you already have.2011-07-24
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    Pythagorean Theorem is used a lot in carpentry. For eg, construction of hip roofs.2011-07-24

2 Answers 2

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"How far does the second baseman have to throw the ball in order to get the runner out before he slides into home plate?" ...and other neat examples found at: http://www.suite101.com/content/the-pythagorean-theorem-a21010

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Here is a link which I found using Google: