Peter Bruells wrote in :

Smitty Two writes:

In article , Peter Bruells
wrote:

"Martin" writes:


the pyramids in Egypt did).

Weird.... I thought the pyramids pre-date Pythagoras by 1 or 2
millennia?

And your point is?

If I may, as the same thought occurred to me, I believe his point is
that the 3,4,5 rule, commonly referred to as the Pythagorean
theorem, is credited to Pythagoras. It's difficult to use concepts
that have not yet been developed.

They had been developed - just not fully explored and understood. And
keep in mind that it's quite possible to develop and use a
mathematical formula but not to have a proof or deeper understanding
of it.


The Egyptians could have got right angles without using math. Lay out a
rectangle and measure that the opposite corners in each direction are the
same distance.