Don:

You are gooood...!

From yours: I now change the perimeter measure to a circumference of a circle as shown below.


All looks good to this point, but what we have overlooked is where we came from.

The first pyramid to be entered had to be G3; it has the smooth lower casing exactly where the entrance lies...the first invaders couldn't miss it. Also, the first entry was made many years before Perring and crew...they were unaware of its location.

The other two larger pyramids were entered after G3, but nowhere near their true entrance, the invaders assumed dead center to be it...this verifies that they believed all entrances were dead center...but only after entering G3.

So...
You are the invader and now you have finally found G1's entrance and you are in the QC. You have measured and calculated the numbers as shown above. Next is to compare these measures to those you recorded in G3.

Enter the granite chamber.

The following drawing is the circle we formed above and now it is overlaid on top of the base measures for the small granite chamber (blue hatch area).



Presto....a perfect fit lengthways and exactly 40% of the total square in the opposite direction.

Now we can cautiously assume a mathematical connection between G1 and G3, but I have to remind you of the steps taken.

The width of the circle was "derived" from the "perimeter" of the QC after divided it by "pi"...who would have thought it possible?

Tomorrow I will upload the next drawing to clinch the fact that the builders/designers fully understood circular measures.

Have a good one.
Clive