“In his ... 'Geometrical peculiarities of the Pyramids', Ballard shows the relationship between the equal area theory and the golden number. After checking Herodotus' statement via dimensions Ballard concludes: 'I have therefore the authority of Herodotus to support the theory which I shall subsequently set forth, that this pyramid was the exponent of lines divided in mean and extreme ratio.” GeometryGolden RatioHistory Of MathematicsGreat PyramidAncient Egyptians Book:The Shape of the Great Pyramid Source: The Shape of the Great Pyramid