e/Seven circles theorem

Information
has gloss	eng: In geometry, the seven circles theorem is a theorem about a certain arrangement of seven circles in the Euclidean plane. Specifically, given a chain of six circles all tangent to a seventh circle and each tangent to its two neighbors, the three lines drawn between the six points of tangency with the seventh circle all pass through the same point. Though elementary in nature, this theorem was not discovered until 1974 (by Evelyn, Money-Coutts, and Tyrrell).
lexicalization	eng: Seven circles theorem
instance of	(noun) any circular or rotating mechanism; "the machine punched out metal circles" circle, round

Media
media:img	Teorema de les set circumferències.PNG