The question of the accumulation of errors in a mining site of arbitrary shape leads to the consideration of complex formulas that do not make it possible to draw any general conclusions or give general rules for solving the issue in various practical cases. The possibility of simplification begins from the moment when we attribute some kind of pattern to the broken line. In ordinary mining polygons, such simple regularity of a broken line is absent; straight elongated polygons are quite rare, and the above-mentioned regular broken line is even rarer. At the same time, it cannot be said that there was no regularity in the form of ordinary mining sites, at least in the coal mines of the south of Russia, which we mainly mean in all further discussion.
