Fonte: Adaptado de http://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=wKoAn7bqCe1-MM&tbnid=214tLDhgG3jUaM:&ved=0CAUQjRw&url=http%3A%2F%2Faprocuraccb.blogspot.com%2F2010%2F05%2Fteorema-de-pitagoras.html&ei=srSHUYnRNIOo9gST2oGAAg&bvm=bv