Quote 'I previously postulated on the board that 25/8 might also be present at G1, but discovered that I was an idiot to suggest it, but, then, I don’t claim to know all the answers, or, indeed, any of the questions!'
No this number 3.125 can be found in the height of the GP but a little bit of an odd number 484 imperial feet. 484 x 3,125 = 1512.5 or 756.25 feet base 9075 inches / 20.625 = 440 royal cubits.
It has been attached to the socket length 760.5 feet 9126 inches. They reached this by using a value for pi of 3.142561983 and constructed it in the same manner which I have published in another thread 484 / 44 = 11 x 39 = 429 (429 is the side of a square which has the same area as a circle with a diameter if 484) 429 /44 = 9.75 x 39 = 380.25 feet x 2 = 760.5 or 9126 inches socket length.
The height of the pyramid 280 royal cubits x 3.125 = 875 or twice height 437.5 Indus/Saxon/Northern feet 481.25 imperial feet.