> Thanks Harte, The Ancient Egyptians did indeed use
> the seked to calculate gradients. We know because
> we have records, G1 is built on a 5 1/2 seked.
> which is a 5 palms + 2 digits run to a rise of 7
> palms which naturally incorporates the pi ratio,
> (4 / (22/7) = 14/11) the rise run of the 5 1/2
> seked. Most assuredly if the Ancient Egyptians had
> been cognizant and used pi they would surely have
> made a note of it somewhere, either in the papyri
> or carved in a obelisk or stele somewhere. Yet,
> there is no recorded record of any form of pi by
> the Ancient Egyptians. Rhind Mathematical Papyrus
> problem #50 demonstrates their method for finding
> the area of a circle which they then used
> extensively in the papyri for many different
> calculations never bothering to use the pi ratio.
> With their methods so clearly spelled out in the
> papyri did they even bother to calculate the
> circumference of a circle? If so, without pi how
> were they able to calculate the circumference of a
My understanding is that they didn't calculate circumference directly. They estimated using polygonal perimeters.
I should note that for those who don't know or didn't read the link I provided that 22/7 isn't actually "encoded" into the GP. It is the result of mathematical manipulation of the height measure and the perimeter of the base.
The 5-1/2 seked mentioned is 22 fingers "in" for every cubit "up." And a cubit is 7 palms, or 28 fingers. Therefore the actual ratio is 22/28, and the 22/7 comes from dividing the perimeter by 2 in the false numerology of the structure.