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a pattern using only part of the dot grid. If that is the case, the same pattern or a different pattern fills/uses up the remaining dot grids. Most of the times, these patterns together end up becoming a complex pattern. [citation needed] a pattern in which a stroke runs around each dot incompletely, but open.
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The shortest strip for which this is possible consists of three equilateral triangles, folded at the edges where two triangles meet. Its aspect ratio – the ratio of the strip's length [ c ] to its width – is 3 ≈ 1.73 {\displaystyle {\sqrt {3}}\approx 1.73} , and the same folding method works for any larger aspect ratio.
Alternatively, if you expand each of five cubes by moving the faces away from the origin the right amount and rotating each of the five 72° around so they are equidistant from each other, without changing the orientation or size of the faces, and patch the pentagonal and triangular holes in the result, you get a rhombicosidodecahedron ...
There are two main types of word art: [2] One uses words or phrases because of their ideological meaning, their status as an icon, or their use in well-known advertising slogans; in this type, the content is of paramount importance, and is seen in some of the work of Barbara Kruger, On Kawara and Jenny Holzer's projection artwork called "For the City" (2005) in Manhattan.
[a] The angular unit of the turn is useful in connection with, among other things, electromagnetic coils (e.g., transformers), rotating objects, and the winding number of curves. Divisions of a turn include the half-turn and quarter-turn, spanning a straight angle and a right angle , respectively; metric prefixes can also be used as in, e.g ...
A 3D-printed version of the Reutersvärd Triangle illusion. M.C. Escher's lithograph Waterfall (1961) depicts a watercourse that flows in a zigzag along the long sides of two elongated Penrose triangles, so that it ends up two stories higher than it began. The resulting waterfall, forming the short sides of both triangles, drives a water wheel.
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.