- circumcircleregular polygons-1inscribed quadrilateralsan archimedes' formulasimson lineregular polygonssum of the interior angles of a n-gonan equilateral trianglethe flower of lifeJohnson's theoremmiquel's triangle theoremBrahmagupta's formulaexeter pointproperties of the altitudesapproximating pi-1circles of a regular n-gonregular polygons-3
