Author:
Turanyanin, Dragan N.
Sub-Category:
Mathematics and Applied Mathematics
Date Published:
November 11, 2025
Abstract:
This essay presents a three-dimensional analogue of the Theorem of Coincidence previously established for regular polygons. Here, a cube is centrally inscribed within a square pyramid under strict coincidence conditions. This geometrical setup possesses two equally significant cases: basic C₁ and rotated C₂. Together with the planar blueprint, this spatial counterpart forms a coherent framework suggesting that strict central coincidences constrain dimensions through exact algebraic laws. Accordingly, connection with golden ratio φ and plastic constant ρ surprisingly emerges.
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