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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 ...
There are several elementary results concerning similar triangles in Euclidean geometry: [9] Any two equilateral triangles are similar. Two triangles, both similar to a third triangle, are similar to each other (transitivity of similarity of triangles). Corresponding altitudes of similar triangles have the same ratio as the corresponding sides.
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 ...
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.
This list of triangle topics includes things related to the geometric shape, either abstractly, as in idealizations studied by geometers, or in triangular arrays such as Pascal's triangle or triangular matrices, or concretely in physical space.
60° rhombus (2 triangles) (Blue) that can be matched with two of the green triangles; 30° Narrow rhombus (Beige) with the same side-length as the green triangle; Trapezoid (half hexagon or 3 triangles) (Red) that can be matched with three of the green triangles; Regular Hexagon (6 triangles) (Yellow) that can be matched with six of the green ...
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 ...
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 ...