Chat with our AI personalities
Pythagoras, with alternative proofs from lots of others.
For a number of proofs see: http://www.cut-the-knot.org/pythagoras/ Proof 6 seems to be the most straightforward.
TAN on your calculator means TANGENT. In Pythagoras Theorem. Try googling about Pythagoras Theorem and it will answer your questions. Hope this helps.
Pythagoras was called "Pythagoras of Samos" because he was born in Samos.
archeology, building, stuff like that