Reply #35: I think that's called the Pythagorean Theorem

[SocratesInSpirit]

But as to what the purpose of it is, I've no idea. I vaguely recall it had something to do with triangles. :shrug: :)

I'm sure the math whizzes are wincing as they read this post. :hi:

Edit: Aha! According to Wikipedia: In mathematics, the Pythagorean theorem (American English) or Pythagoras' theorem (British English) is a relation in Euclidean geometry among the three sides of a right triangle. The theorem is named after the Greek mathematician Pythagoras, who by tradition is credited with its discovery and proof,<1> although knowledge of the theorem almost certainly predates him.

I was right. Triangles are involved. :)