1. Find the length of the ladder required to climb through your window. Suppose you are locked out and need to find out the length of the ladder required to reach the window, which
http://www.ehow.com/how_8474122_usepythagoreanth...

Carpentry.
http://wiki.answers.com/Q/How_might_the_Pythagorea...

TV screen sizes. They are always given as the diagonal measure, but if you want to know the actual dimensions, and you know the ratio of sides (16:9 or 4:3) then you can find them
http://answers.yahoo.com/question/index?qid=201307...

This question is roughly analogous to asking "what are some real life uses of the left claw on a claw hammer? It's not natural to focus your attention on the Pythagorean theorem
http://www.quora.com/PythagoreanTheorem/Whatare...
