Height of pyramid 280RC 481.25 imp ft.
hgt 481.25 x 22/7 = 756.25 for base of pyramid 440RC 20.625ins . And the seked is found.
hgt 481.25 x 3.1418181818 = 756 for base (many believe 756 true base of pyramid).
We all know there are 3 bases at least. core,casing,socket.
Core base is interesting being certainly 9000 ins 750ft perimeter 36000 ins.
Core hgt uncertain my guess 480 ft and x pi value Babylonian 3.125 = 750ft base. A check here can be obtained by working volume of core pyramid. base squared / 3 x hgt 480 volume = 90,000,000 cubic ft same number as base.
I will add socket base.
hgt 481.25 x Egyptian pi 3.16049383 = 760.493ft 9125.9ins socket