enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Parallelogram law - Wikipedia

    en.wikipedia.org/wiki/Parallelogram_law

    Vectors involved in the parallelogram law. In a normed space, the statement of the parallelogram law is an equation relating norms: ‖ ‖ + ‖ ‖ = ‖ + ‖ + ‖ ‖,.. The parallelogram law is equivalent to the seemingly weaker statement: ‖ ‖ + ‖ ‖ ‖ + ‖ + ‖ ‖, because the reverse inequality can be obtained from it by substituting (+) for , and () for , and then simplifying.

  3. Geometric Shapes (Unicode block) - Wikipedia

    en.wikipedia.org/wiki/Geometric_Shapes_(Unicode...

    25A0 25B0 25C0 Symbol Name Symbol Name Symbol Name Last Hex# HTML Hex HTML Hex HTML Hex Dec Picture Dec Picture Dec Picture BLACK SQUARE: BLACK PARALLELOGRAM: : BLACK LEFT-POINTING TRIANGLE

  4. Parallelogram - Wikipedia

    en.wikipedia.org/wiki/Parallelogram

    The area of the parallelogram is the area of the blue region, which is the interior of the parallelogram. The base × height area formula can also be derived using the figure to the right. The area K of the parallelogram to the right (the blue area) is the total area of the rectangle less the area of the two orange triangles. The area of the ...

  5. File:Parallelogram law squares.svg - Wikipedia

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

    Due to the parallelogram law, the sum of areas of the blue squares equals the sum of areas of the red squares. Source: Own work: Author: Cmglee: Licensing.

  6. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    Splitting the thin parallelogram area (yellow) into little parts, and building a single unit square with them. The key to the puzzle is the fact that neither of the 13×5 "triangles" is truly a triangle, nor would either truly be 13x5 if it were, because what appears to be the hypotenuse is bent.

  7. British flag theorem - Wikipedia

    en.wikipedia.org/wiki/British_flag_theorem

    Even more generally, if the sums of squares of distances from a point P to the two pairs of opposite corners of a parallelogram are compared, the two sums will not in general be equal, but the difference between the two sums will depend only on the shape of the parallelogram and not on the choice of P. [5]

  8. Rectangle - Wikipedia

    en.wikipedia.org/wiki/Rectangle

    A parallelogram is a special case of a trapezium ... This example shows 4 blue edges of the ... The lowest number of squares need for a perfect tiling of a ...

  9. Polarization identity - Wikipedia

    en.wikipedia.org/wiki/Polarization_identity

    Parallelogram law – Sum of the squares of all 4 sides of a parallelogram equals that of the 2 diagonals Ptolemy's inequality – inequality relating the six distances between four points on a plane Pages displaying wikidata descriptions as a fallback