Having followed the the various threads on pi, on this board and previously on Guardians and then reading Piazzi Smyth's book on math and the pyramids. All I can say is nobody has been able to prove one way or the other that the AE's knew about pi or were concerned with it. On the other hand nobody has been able to prove that they didn't know about pi. The record is absolutely silent on both points.

But we can fast forward to various societies that did find pi and see what if anything they did with it. To start with the Greeks were the kings of geometry. Pick up any high school text book and you'll see pi running through every equation. Now you would assume that pi was important to the greeks then since logically, every text book is the latest revision of Euclid's "elements". So go pick up a copy of Euclids "elements" and see how many time he uses 'pi'. I'll save you the trouble. He doesn't use pi at all. Not once. Archimedes is credited with developing a proto-calculus, and pi pops up all the time in calculus. And lo and behold he did find an approximate value of pi. And proceeded to do nothing with it. I could continue on, with the same conclusion. Not until around the 18th, 19th, and 20th AFAICS did mathematics become obsessed with pi. And only then was pi retroactively appplied to the pyramids. Since then the battle has been on and it appears it will continue until the pyramids vanish.