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Is this equivalent to the Pythagorean Theorem?

  1. Jun 29, 2012 #1
    So I was reading up on the Pythagoreans, and I came across this page: http://www.math.ufl.edu/~rcrew/texts/pythagoras.html [Broken].

    I don't see the reasoning behind this statement.


    I tried some simple algebra on this statement and couldn't get Pythag to fall out of it. Can someone figure out a derivation for this?
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Jun 29, 2012 #2
    That's not what the page says. It says,

    [tex]AB^2 = AC^2 + CB^2[/tex]

    A, B, and C are not variables. [itex]AB[/itex] represents the length between points A and B. You should read [itex]AB^2[/itex] as a single length being squared.
     
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