Don wrote
Thus we have 440 cubits (by consensus the agreed upon length of GP base) x's 20.618034 = 9071.934955 inches
Now interestingly when we divide the base of The GP by the circumference of the measuring wheel (see image below) [9071.934955 divided by 32.37680779] we get ...
...280.2 (actually we get 280.11 if we do not round off)
Seems to me this is the height of The Great Pyramid.
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Sorry Don this is not right!
If it is 9071.934955 ((inches)) divided by 32.37680779
Then your 280.2 is also inches and the GP is not 280.2 inches tall.
RLH