Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Pythagoras Theorem

  1. Nov 23, 2003 #1
    http://www.ies.co.jp/math/java/geo/pitha1/pitha1-2.gif [Broken]

    This is one of the many pythagorean proofs and I dont understand why A1=A2 and A4=A3? Can someone explain this to me please?
     
    Last edited by a moderator: May 1, 2017
  2. jcsd
  3. Nov 23, 2003 #2

    NateTG

    User Avatar
    Science Advisor
    Homework Helper

    ABC, HBA, and HAC are all similar triangles.

    That means that the ratio of the sides are the same/
    so AB/BC=BH/AB
    so AB*AB=BH*BC
    so A1=A2

    There is a simliar argument for B1 and B2
     
  4. Nov 23, 2003 #3
    I see now, thanks
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook