In geometry, Brianchon's theorem is a theorem stating that when a hexagon is circumscribed around a conic section, its principal diagonals (those connecting opposite vertices) meet in a single point. It is named after Charles Julien Brianchon (1783–1864). See more Let $${\displaystyle P_{1}P_{2}P_{3}P_{4}P_{5}P_{6}}$$ be a hexagon formed by six tangent lines of a conic section. Then lines See more As for Pascal's theorem there exist degenerations for Brianchon's theorem, too: Let coincide two neighbored tangents. Their point of intersection becomes a point of the conic. In the diagram three pairs of neighbored tangents coincide. This procedure results in … See more Brianchon's theorem can be proved by the idea of radical axis or reciprocation. See more The polar reciprocal and projective dual of this theorem give Pascal's theorem. See more Brianchon's theorem is true in both the affine plane and the real projective plane. However, its statement in the affine plane is in a sense less informative and more complicated than … See more • Seven circles theorem • Pascal's theorem See more WebThree problems are discussed: the classification theorem for families of ellipses inscribed in convex polygons, Brianchon’s theorem, and Bradley’s theorem. Each is presented with an...
A new theorem (discovered in 2013) equivalent to …
WebTrong hình học phẳng định lý Brianchon phát biểu rằng nếu một lục giác ngoại tiếp một conic ( đường bậc hai) thì 3 đường chéo chính của nó đồng quy. Định lý Brianchon có thể được chứng minh bằng cách sử dụng định lý Pascal thông qua tính chất cực đối cực. my mint channel ig
List of theorems - Wikipedia
http://waywiser.fas.harvard.edu/objects/12808/mathematical-model-brianchons-theorem-;ctx=8cfb6b41-02e4-4231-b169-31d6d4fec1e5&idx=0 WebJun 14, 2024 · Converse of theorem: Let a hexagon C 1 C 2 C 3 C 4 C 5 C 6 which C 1 C 4, C 2 C 5, C 3 C 6 are concurrent then exist many configuration of eight circles as figuration above. If the converse … WebJul 21, 2014 · Brianchons theorem was published in 1810 by the French mathematician Charles-Julien Brianchon (1783–1864). The theorem asserts that if a hexagon is … my mint channelig