Earth Scale Model at 1:43,200

At a scale factor of 1:43,200, the Great Pyramid maps the Earth: Height (146.59m) × 43,200 = 6,332,688m, within 0.38% of Earth's polar radius (6,356,752m). Perimeter (921.32m) × 43,200 = 39,801,024m, within 0.68% of Earth's equatorial circumference (40,075,017m). The number 43,200 is not arbitrary — it equals 2 × 21,600, where 21,600 is the number of arc-minutes in a circle (360° × 60). It also connects to precession: 43,200 = 600 × 72, where 72 years is the time for 1° of precessional shift. This implies the builders had precise knowledge of Earth's dimensions and the precession cycle.