http://www.ies.co.jp/math/java/geo/pitha1/pitha1-2.gif [Broken](adsbygoogle = window.adsbygoogle || []).push({});

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?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Pythagoras Theorem

**Physics Forums | Science Articles, Homework Help, Discussion**