The area of a circle is pi times the diamer. Pi is a number that starts 3.141.......... and has been computed out to over a hundred thousand places. So there is no possible square root of such a number. So it is impossible to find the area of a circle given as the square of a number.

I cannot help being skeptical of some of the theories about the intentions of the builders of the pyramids. I was much more interested in a book I read about eight years ago, by a French authority on geopolymers, of which Portland cement is an example, that the blocks of the Great Pyramid were not cut out of stone, but were cast in place using crushed limestone. I could find nothing improbable in his arguments.

http://www.raygirvan.co.uk/apoth/though11.htm

out of print - First edition: The Pyramids, An Enigma Solved
by Joseph Davidovits and Margie Morris
ISBN 0-87052-559-X Hippocrene Books, New York 1988
ISBN 0-88029-555-4 Dorset Press, New York 1990)