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  2. List of Martin Gardner Mathematical Games columns - Wikipedia

    en.wikipedia.org/wiki/List_of_Martin_Gardner...

    Dr. Matrix, like Mr. Holmes, comes to an untimely and mysterious end 1980 Oct: From counting votes to making votes count: the mathematics of elections 1980 Nov: Taxicab geometry offers a free ride to a non-Euclidean locale 1980 Dec: Patterns in primes are a clue to the strong law of small numbers 1981 Feb: Gauss's congruence theory was mod as ...

  3. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    The apparent triangles formed from the figures are 13 units wide and 5 units tall, so it appears that the area should be S = ⁠ 13×5 / 2 ⁠ = 32.5 units. However, the blue triangle has a ratio of 5:2 (=2.5), while the red triangle has the ratio 8:3 (≈2.667), so the apparent combined hypotenuse in each figure is actually bent.

  4. Crossword - Wikipedia

    en.wikipedia.org/wiki/Crossword

    An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...

  5. Parable of the Polygons - Wikipedia

    en.wikipedia.org/wiki/Parable_of_the_Polygons

    A randomly generated board containing segregated squares and triangles. The article is an interactive blog post, "part story and part game". [1] [2] It has a model consisting of a society of blue squares and yellow triangles, presented in a grid. [3] [4] At the top of the article, a crowd of triangles and squares are wiggling. [5]

  6. List of two-dimensional geometric shapes - Wikipedia

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

    Print/export Download as PDF; Printable version; In other projects ... Primitive Heronian triangle; Right triangle. 30-60-90 triangle; Isosceles right triangle;

  7. The New York Times crossword - Wikipedia

    en.wikipedia.org/wiki/The_New_York_Times_crossword

    A full specification sheet listing the paper's requirements for crossword puzzle submission can be found online or by writing to the paper. The Monday–Thursday, and usually Sunday, puzzles have a theme. This is often some sort of connection between at least three long across answers, such as similar types of puns, added letters, or hidden ...

  8. 15 Christmas Tree Desserts That Are *Almost* Too Cute to Eat

    www.aol.com/15-christmas-tree-desserts-almost...

    The shape is a giant green triangle after all. So we dug into our archives to find 15 Christmas tree dessert recipes to fit the bill. They range from cookies and cakes to fruit and candy, with ...

  9. MacMahon Squares - Wikipedia

    en.wikipedia.org/wiki/MacMahon_Squares

    More colors can be described in a similar way. For example, a coloring of C 1,2,2,2 represents 1 to 1, 2 to 3, 4 to 5, and 6 to 7. From here we can see that the only possible numbers to describe the pairings by are 1 and 2, since a 3 or above merely skips over a color that would be used the same otherwise because colorings are relative. [1]