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  2. Trapezoid - Wikipedia

    en.wikipedia.org/wiki/Trapezoid

    In geometry, a trapezoid (/ ˈ t r æ p ə z ɔɪ d /) in North American English, or trapezium (/ t r ə ˈ p iː z i ə m /) in British English, [1] [2] is a quadrilateral that has at least one pair of parallel sides.

  3. Trapezoidal rule - Wikipedia

    en.wikipedia.org/wiki/Trapezoidal_rule

    The trapezoidal rule is one of a family of formulas for numerical integration called Newton–Cotes formulas, of which the midpoint rule is similar to the trapezoid rule. ...

  4. Trapezium - Wikipedia

    en.wikipedia.org/wiki/Trapezium

    Comparisons of "trapezium" in both British and American English. Trapezium, plural trapezia, may refer to: . Trapezium, in British and other forms of English, a trapezoid, a quadrilateral that has exactly one pair of parallel sides

  5. 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.

  6. Trapezium Cluster - Wikipedia

    en.wikipedia.org/wiki/Trapezium_Cluster

    The Trapezium is most readily identifiable by the asterism of four relatively bright stars for which it is named. The four are often identified as A, B, C and D in order of increasing right ascension.

  7. Surface area - Wikipedia

    en.wikipedia.org/wiki/Surface_area

    A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...

  8. Trapezoidal distribution - Wikipedia

    en.wikipedia.org/wiki/Trapezoidal_distribution

    In probability theory and statistics, the trapezoidal distribution is a continuous probability distribution whose probability density function graph resembles a trapezoid. ...

  9. Trapezium (bone) - Wikipedia

    en.wikipedia.org/wiki/Trapezium_(bone)

    The trapezium is distinguished by a deep groove on its anterior surface. It is situated at the radial side of the carpus, between the scaphoid and the first metacarpal bone (the metacarpal bone of the thumb).