PLATE JII 



\ 



E 



A 



F 



J 





l^ft^^^^^ffl rHB 1 ■S 



' \ v 

 ~^~ T K 



A\ 6 



H 



^^^__^^^ 



c 







I 





THE GEE AT PYEAMTD OP JEEZEH 



AC Height of Pyramid. 



D B Diameter of Pyramid = 365 242 Pyramid Cubits, 



EFGH Base of Pyramid. 



ABCD Diametrical Vertical Section. 



A K C J Diagonal Vertical Section. 



AC it to twice DB as t, or as 1 is to 3-14159, or as the diameter 

 is to the circumference of a circle. 



And ADB, the right section of the Pyramid, is to EFGH, the 

 area of the base, as tt, or as 1 is to 3*14159, or as the diameter to 

 the circumference of a circle. 



And A C, the height, is the radius of a circle equal in circum- 

 ference to the external lines of the square base. 



Thus actually squaring the circle as accurately as possible. 



See Piazzi Smyth's "Out Inheritance in the Great Pyramid.' 



