Why this pyramid belongs in the collection
Khafre belongs beside Khufu because visual prominence can mislead. Its higher bedrock position and surviving summit casing make it appear taller from some viewpoints, even though its reconstructed original height is lower. The calculator returns attention to the measured profile.
What can be measured
Using a representative base side of 215.25 metres and original height of 143.50 metres, the half-base is 107.625 metres and the calculated slant is 179.375 metres. Those values reduce exactly to a 3:4:5 right triangle for the selected model. Survey estimates and casing reconstruction still carry archaeological uncertainty.
The native or comparative measure
The most historically plausible design language is a cubit divided into palms and digits, expressed through a seked. The selected dimensions return a 5.25-palm seked. That rational slope is easier to construct and communicate than a retrospective decimal angle.
The pattern worth testing
The exact 3:4:5 relationship is stronger than the slant ratio's looser proximity to phi. This is a useful example of why the calculator ranks a direct rational construction above a nearby named irrational constant.
Interpretive limit
The clean ratio belongs to the selected reconstruction, not automatically to every survey line or surviving course. A ratio can be geometrically exact inside a model while the original intention remains an archaeological argument.
A repeatable investigation
Begin with the published or reconstructed dimensions and state the shape assumption. Calculate the seked and ordinary geometry before testing a named constant. Keep the chosen broad ±0.5 exploratory screen fixed across the full collection, display the residual for every match, and treat a numerical result as evidence of intention only when independent historical evidence supports it.
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