Hi Don

I am suggesting that this rectangle is anchored to the centers of the Great pyramid and the Third pyramid.

I think the length of the base of the Great pyramid = 1 and its base length 1 x 2.5 is the east west leg and its base length 1 x 3.2 is the north south leg.

Area of rectangle 2.5 x 3.2 = 8

i am suggesting the area of the base of the Great pyramid = 1/8th the area of the rectangle.

And the area of the base of the third pyramid = 1/36th the area of the rectangle.

[flic.kr]

Jim