There are many subtle features not apparent at first sight, but easily spotted on conversion of measurements into digits and royal cubits.
In my opinion the Ascending Passage captures the geometry of the radian in an elegant way. My model explains the slope, the slope length, the height and the width of the passage, all in the context of a simple geometric model.
I related the width of the Ascending Passage to the slope of the Ascending Passage by taking the width as the digit seked.
The agreement is close, but could be a coincidence, so let's apply the same idea to the Entrance Passage.
In the section of the Entrance Passage above the Ascending Passage:
Smyth determined the mean width at 41.53 inches (41.62, 41.46, 41.50, 41.55, 41.52)
Petrie determined the mean width at 41.53 inches (41.6, 41.5, 41.5)
Using decimals for analysis:
Mean width 41.53 inches converts to 56.42.. digits
seked of 56.42.. digits = 26 degrees 23 minutes 37 Seconds
Petrie 26 degrees 26 minutes 42 seconds
Smyth 26 degrees 27 minutes
Mean 26 degrees 26 minutes 51 seconds
The theoretical digit seked to fit the mean measured slope is 56.28.. digits as a decimal, which equates to 41.43 inches, just 0.1 inches adrift from the mean width of the Entrance Passage.
Mark