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  2. Trapezoid - Wikipedia

    en.wikipedia.org/wiki/Trapezoid

    A right trapezoid (also called right-angled trapezoid) has two adjacent right angles. [13] Right trapezoids are used in the trapezoidal rule for estimating areas under a curve. An acute trapezoid has two adjacent acute angles on its longer base edge. An obtuse trapezoid on the other hand has one acute and one obtuse angle on each base.

  3. Vowel diagram - Wikipedia

    en.wikipedia.org/wiki/Vowel_diagram

    A vowel diagram or vowel chart is a schematic arrangement of the vowels. Depending on the particular language being discussed, it can take the form of a triangle or a quadrilateral. Depending on the particular language being discussed, it can take the form of a triangle or a quadrilateral.

  4. List of two-dimensional geometric shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_two-dimensional...

    This is a list of two-dimensional geometric shapes in Euclidean and other geometries. ... Isosceles trapezoid; Trapezus; Pentagon – 5 sides; Hexagon – 6 sides

  5. List of mathematical shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_shapes

    Table of Shapes Section Sub-Section Sup-Section Name Algebraic Curves ¿ Curves ¿ Curves: Cubic Plane Curve: Quartic Plane Curve: Rational Curves: Degree 2: Conic Section(s) Unit Circle: Unit Hyperbola: Degree 3: Folium of Descartes: Cissoid of Diocles: Conchoid of de Sluze: Right Strophoid: Semicubical Parabola: Serpentine Curve: Trident ...

  6. File:Blank vowel trapezoid-three-height.svg - Wikipedia

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

    My goal is to make this more useful as a ''template'' for vowel charts. 2009-02-19T06:05:52Z Moxfyre 882x660 (2907 Bytes) removed unused defs in the XML to reduce file size; 2009-02-18T21:57:03Z Moxfyre 882x660 (3165 Bytes) fixed opaque trapezoid

  7. Quadrilateral - Wikipedia

    en.wikipedia.org/wiki/Quadrilateral

    Tangential trapezoid: a trapezoid where the four sides are tangents to an inscribed circle. Cyclic quadrilateral: the four vertices lie on a circumscribed circle. A convex quadrilateral is cyclic if and only if opposite angles sum to 180°. Right kite: a kite with two opposite right angles. It is a type of cyclic quadrilateral.

  8. List of centroids - Wikipedia

    en.wikipedia.org/wiki/List_of_centroids

    The following is a list of centroids of various two-dimensional and three-dimensional objects. The centroid of an object in -dimensional space is the intersection of all hyperplanes that divide into two parts of equal moment about the hyperplane.

  9. Trapezoid graph - Wikipedia

    en.wikipedia.org/wiki/Trapezoid_graph

    A circle trapezoid is the region in a circle that lies between two non-crossing chords and a circle trapezoid graph is the intersection graph of families of circle trapezoids on a common circle. There is an O ( n 2 ) {\displaystyle O(n^{2})} algorithm for maximum weighted independent set problem and an O ( n 2 log ⁡ n ) {\displaystyle {O}(n ...