Gurzadyan theorem (source code)

= Gurzadyan theorem
{wiki=Gurzadyan_theorem}

The Gurzadyan theorem, proposed by the Armenian mathematician A. G. Gurzadyan, deals with a specific aspect of the geometry of circles. It states that if you have a circle and you consider its inscribed and circumscribed polygons, certain properties hold regarding their areas and relationships. One of the most notable implications of Gurzadyan's work is related to the properties of cyclic quadrilaterals and their area expressions.