http://www.jesus-is-savior.com/False%20Religions/Wicca%20&%20Witchcraft/pentagram.htm
I don’t know, but that is disturbing.
That website is a load of crap, though. There is a humungous difference between an inverted pentagram (=goat’s head, etc.) and a right-side-up pentagram (=5 wounds of Christ, for instance). That site lumps them altogether, occasionally mixing in a little antisemitism: A “Star of David” is drawn out of what is, in fact, merely a triangle. And the triangle doesn’t even have the proper angles (60 degrees) to form a hexagram.