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  2. Miquel's theorem - Wikipedia

    en.wikipedia.org/wiki/Miquel's_theorem

    Miquel's theorem is a result in geometry, named after Auguste Miquel, [1] concerning the intersection of three circles, each drawn through one vertex of a triangle and two points on its adjacent sides.

  3. Six circles theorem - Wikipedia

    en.wikipedia.org/wiki/Six_circles_theorem

    Some examples of theorem configuration changing the radius of the first circle. In the last configuration the circles are pairwise coincident. In geometry, the six circles theorem relates to a chain of six circles together with a triangle, such that each circle is tangent to two sides of the triangle and also to the preceding circle in the ...

  4. List of most-viewed YouTube videos - Wikipedia

    en.wikipedia.org/wiki/List_of_most-viewed...

    Specifically, to count as a legitimate view, a user must intentionally initiate the playback of the video and play at least 30 seconds of the video (or the entire video for shorter videos). Additionally, while replays count as views, there is a limit of 4 or 5 views per IP address during a 24-hour period, after which point, no further views ...

  5. List of circle topics - Wikipedia

    en.wikipedia.org/wiki/List_of_circle_topics

    Lester's theorem – Several points associated with a scalene triangle lie on the same circle; Milne-Thomson circle theorem; Miquel's theorem – Concerns 3 circles through triples of points on the vertices and sides of a triangle; Monge's theorem – The intersections of the 3 pairs of external tangent lines to 3 circles are collinear

  6. Circle theorem - Wikipedia

    en.wikipedia.org/wiki/Circle_theorem

    Circle theorem may refer to: Any of many theorems related to the circle; often taught as a group in GCSE mathematics. These include: Inscribed angle theorem. Thales' theorem, if A, B and C are points on a circle where the line AC is a diameter of the circle, then the angle ∠ABC is a right angle. Alternate segment theorem. Ptolemy's theorem.

  7. Five circles theorem - Wikipedia

    en.wikipedia.org/wiki/Five_circles_theorem

    In geometry, the five circles theorem states that, given five circles centered on a common sixth circle and intersecting each other chainwise on the same circle, the lines joining their second intersection points forms a pentagram whose points lie on the circles themselves.

  8. Miquel configuration - Wikipedia

    en.wikipedia.org/wiki/Miquel_configuration

    Miquel configuration Rhombic dodecahedral graph. In geometry, the Miquel configuration is a configuration of eight points and six circles in the Euclidean plane, with four points per circle and three circles through each point. [1] Its Levi graph is the Rhombic dodecahedral graph, the skeleton of both Rhombic dodecahedron and Bilinski dodecahedron.

  9. Clifford's circle theorems - Wikipedia

    en.wikipedia.org/wiki/Clifford's_circle_theorems

    The second theorem considers five circles in general position passing through a single point M. Each subset of four circles defines a new point P according to the first theorem. Then these five points all lie on a single circle C. The third theorem considers six circles in general position that pass through a single point M. Each subset of five ...