The Simple Giza Layout Geometry

 

The salient features are shown in C Wayne Taylor’s CAD diagram and Jim Alison's graphics :

 

       

 

 

THE STRUCTURE

 

  1. There are three parallel diagonals from top left to bottom right that form the diagonals of the three pyramids. (Only the yellow one BB’ through P2 is highlighted)

 

  1. Another diagonal at right angles to this (the blue line AA’) cuts through the four mid point of G1 and G3 as shown. This is called the 45 degree axis and is 2000c long.

 

THE RULES

 

  1. The base length of G1 is set at 440 cubits

 

  1. The three parallel diagonals mentioned in A are spaced in the ratio 11 to 10  (in other words the upper long yellow line is 10% longer than the lower long yellow line) .

  

  1. The yellow diagonal of G2 is half way between the two mid points of the pyramids G1 and G3 (or in other words, the blue dot is half way and A = A’)

 

(With findings 1,2 and 3 the base size of G3 can be predicted as 201.5c, and the orientation of P1-P3 can be predicted as 37.7 degrees to north, both results confirmed by Petrie's data.)

 

  1. The north eastern corner of G2 is positioned at 500c from the mid south point of G1 on the 2000c axis and the north-south gap between G1 and G2 is set at 250 cubits

 

CONCLUSION

 

With just these 4 verified rules the whole layout is fully defined, (no more are needed)

 

 

Graham Chase