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  2. Thomsen's theorem - Wikipedia

    en.wikipedia.org/wiki/Thomsen's_theorem

    Thomsen's theorem, named after Gerhard Thomsen, is a theorem in elementary geometry. It shows that a certain path constructed by line segments being parallel to the edges of a triangle always ends up at its starting point.

  3. Intersecting chords theorem - Wikipedia

    en.wikipedia.org/wiki/Intersecting_chords_theorem

    In Euclidean geometry, the intersecting chords theorem, or just the chord theorem, is a statement that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal. It is Proposition 35 of Book 3 of Euclid's Elements.

  4. Special right triangle - Wikipedia

    en.wikipedia.org/wiki/Special_right_triangle

    Set square shaped as 45° - 45° - 90° triangle The side lengths of a 45° - 45° - 90° triangle 45° - 45° - 90° right triangle of hypotenuse length 1.. In plane geometry, dividing a square along its diagonal results in two isosceles right triangles, each with one right angle (90°, ⁠ π / 2 ⁠ radians) and two other congruent angles each measuring half of a right angle (45°, or ...

  5. Category:Theorems about triangles - Wikipedia

    en.wikipedia.org/wiki/Category:Theorems_about...

    This category has the following 3 subcategories, out of 3 total. T. Theorems about special triangles (2 C, 2 P) ... Thomsen's theorem This page was last ...

  6. Shirtless Man Pinned Flight Attendant Against ‘Aircraft Exit Door’ and Threatened Violence, Say Authorities

  7. Judy Garland’s Ruby Slippers From ‘The Wizard of Oz ... - AOL

    www.aol.com/judy-garland-ruby-slippers-wizard...

    A pair of ruby slippers worn by Judy Garland in the 1939 classic “The Wizard of Oz” sold at auction Saturday for $28 million. In an email sent to CBS News, Robert Wilonsky, vice president of ...

  8. General Motors recalls nearly 80,000 over transmission safety ...

    www.aol.com/general-motors-recalls-nearly-80...

    When will I be notified if my GM has a recall? Dealers were notified on Nov. 7. Owner notification is estimated to start on Dec. 23. Owners may contact GM customer service at 1-888-988-7267 ...

  9. Gerhard Thomsen - Wikipedia

    en.wikipedia.org/wiki/Gerhard_Thomsen

    Thomsen wrote 22 papers on various topics in geometry and furthermore a few papers on theoretical physics as well. The latter were mostly written in Italian rather than in German. Thomsen also wrote a book on the foundations of elementary geometry. [1] In elementary geometry Thomsen's theorem is named after him. [5]