The Royal Cubit and Earth's Polar Radius

The Egyptian Royal Cubit measures 0.5236meters. Intriguingly, 0.5236 ≈ π/6 (0.5236) to extraordinary precision. If the pyramid's base side (230.33m) is expressed in royal cubits: 230.33 / 0.5236 ≈ 440 cubits. The height is approximately 280 cubits. The ratio 440/280 simplifies to 11/7, which is an ancient approximation for π/2 (since 22/7 ≈ π). Furthermore, Earth's polar radius in royal cubits is approximately 12,132,931, and the pyramid's perimeter in cubits (1,760) times the scale factor 6,894 gives nearly the same value. This suggests the Royal Cubit itself may have been derived from geodetic measurements of the Earth.