Talk:Pedal triangle

Theorem that needs a source so it can be included

For an interior point P as in this diagram from the article, I have in my notes the following theorem:

$AN^{2}+BL^{2}+CM^{2}=NB^{2}+LC^{2}+MA^{2}$

Unfortunately I don't have a source for this. If anyone has one, I think this belongs in the article. 208.50.124.65 (talk) 20:00, 23 July 2014 (UTC)

I found a source, and I'll put it in. 208.50.124.65 (talk) 14:42, 24 July 2014 (UTC)