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  2. Congruence (geometry) - Wikipedia

    en.wikipedia.org/wiki/Congruence_(geometry)

    This diagram illustrates the geometric principle of angle-angle-side triangle congruence: given triangle ABC and triangle A'B'C', triangle ABC is congruent with triangle A'B'C' if and only if: angle CAB is congruent with angle C'A'B', and angle ABC is congruent with angle A'B'C', and BC is congruent with B'C'.

  3. File:Angle-angle-side triangle congruence.svg - Wikipedia

    en.wikipedia.org/wiki/File:Angle-angle-side...

    English: This diagram illustrates the geometric principle of angle-angle-side triangle congruence: Given triangle ABC and triangle A'B'C', triangle ABC is congruent with triangle A'B'C' if and only if angle CAB is congruent with C'A'B' and angle BCA is congruent with B'C'A' and BC is congruent with B'C'.

  4. AA postulate - Wikipedia

    en.wikipedia.org/wiki/AA_postulate

    In Euclidean geometry, the AA postulate states that two triangles are similar if they have two corresponding angles congruent.. The AA postulate follows from the fact that the sum of the interior angles of a triangle is always equal to 180°.

  5. Hilbert's axioms - Wikipedia

    en.wikipedia.org/wiki/Hilbert's_axioms

    Hilbert's axiom system is constructed with six primitive notions: three primitive terms: [5]. point;; line;; plane;; and three primitive relations: [6]. Betweenness ...

  6. Hinge theorem - Wikipedia

    en.wikipedia.org/wiki/Hinge_theorem

    In geometry, the hinge theorem (sometimes called the open mouth theorem) states that if two sides of one triangle are congruent to two sides of another triangle, and the included angle of the first is larger than the included angle of the second, then the third side of the first triangle is longer than the third side of the second triangle. [1]

  7. File:Congruent triangles.svg - Wikipedia

    en.wikipedia.org/wiki/File:Congruent_triangles.svg

    Date/Time Thumbnail Dimensions User Comment; current: 08:30, 27 November 2006: 300 × 375 (19 KB): Ilmari Karonen {{Information |Description=The shape of a w:triangle can be uniquely determined up to w:congruence (geometry) by specifying the lengths of two sides and the angle between them (SAS) or two angles and the side between them (ASA).

  8. PowerPoint karaoke - Wikipedia

    en.wikipedia.org/wiki/PowerPoint_karaoke

    The term "PowerPoint karaoke" is also sometimes derisively used to refer to presenters who face the screen where their PowerPoint slides are being projected and proceed to read them, boring and effectively ignoring their audience. Spanish conceptual artist Rubén Grilo used "PowerPoint Karaoke" as a title for a show at MARCO in June 2011.

  9. File:Congruent non-congruent triangles.svg - Wikipedia

    en.wikipedia.org/wiki/File:Congruent_non...

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