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Rectangle - online puzzles

117Flagssolved 8,656 times
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54Window of an abandoned homesteadsolved 7,381 times
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80The front doorsolved 7,004 times
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580Learning to count suppliessolved 6,965 times
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112Octagon 2solved 6,931 times
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40Souter Lighthouse (United Kingdom)solved 6,898 times
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40Clothespins on a stringsolved 6,407 times
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48Rainbow patternsolved 6,066 times
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108Art of paintingsolved 6,058 times
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150Colorful flash cardssolved 5,851 times
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81Healthy seedssolved 5,493 times
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66Salts solutionssolved 5,418 times
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Book and sunglasses on a beach towel online puzzle
96Book and sunglasses on a beach towelsolved 5,404 times
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Round puzzle online from photo
196Roundsolved 5,310 times
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Card of colors online puzzle
150Card of colorssolved 5,110 times
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Plates~ puzzle online from photo
112Plates~solved 5,043 times
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rosettes online puzzle
63rosettessolved 5,017 times
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Napkins online puzzle
112Napkinssolved 4,848 times
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Draughtsman's tools online puzzle
266Draughtsman's toolssolved 4,801 times
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Rosettes online puzzle
256Rosettessolved 4,729 times
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Bathing Boxes at Brighton Beach in Melbourne (Australia) online puzzle
48Bathing Boxes at Brighton Beach in Melbourne (Australia)solved 4,619 times
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Bobbins with colorful threads online puzzle
48Bobbins with colorful threadssolved 4,429 times
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sandar puzzle online from photo
130sandarsolved 4,275 times
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Plate online puzzle
81Platesolved 4,230 times
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Watch collage ... online puzzle
25Watch collage ...solved 4,132 times
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Luxury house with a swimming pool puzzle online from photo
40Luxury house with a swimming poolsolved 4,047 times
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Colorful leather gloves online puzzle
60Colorful leather glovessolved 3,990 times
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Round puzzle online from photo
256Roundsolved 3,975 times
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Symbols from packaging puzzle online from photo
140Symbols from packagingsolved 3,929 times
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Plates III puzzle online from photo
112Plates IIIsolved 3,926 times
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Symbols from packaging online puzzle
140Symbols from packagingsolved 3,879 times
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Round puzzle online from photo
100Roundsolved 3,841 times
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Polished pieces of glass online puzzle
108Polished pieces of glasssolved 3,839 times
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Hearts with names online puzzle
252Hearts with namessolved 3,811 times
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144colorful puzzlesolved 3,707 times
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Atari 65XE online puzzle
112Atari 65XEsolved 3,576 times
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Colorful nail varnishes online puzzle
160Colorful nail varnishessolved 3,562 times
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Clocks online puzzle
510Clockssolved 3,472 times
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Clocks and watches puzzle online from photo
81Clocks and watchessolved 3,312 times
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Eggs online puzzle
20Eggssolved 3,237 times
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Symbols from packaging online puzzle
140Symbols from packagingsolved 3,189 times
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Something for everyone puzzle online from photo
252Something for everyonesolved 3,185 times
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Shoelaces online puzzle
126Shoelacessolved 3,085 times
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Presents online puzzle
150Presentssolved 3,060 times
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Jigsaw Puzzle online puzzle
112Jigsaw Puzzlesolved 3,059 times
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Playing cards puzzle online from photo
104Playing cardssolved 3,039 times
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Old compass lying on dollar bills online puzzle
117Old compass lying on dollar billssolved 3,037 times
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Octagon 5 online puzzle
112Octagon 5solved 3,017 times
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Online puzzle Rectangle

Rectangle

In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles. It can also be defined as: an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°); or a parallelogram containing a right angle. A rectangle with four sides of equal length is a square. The term "oblong" is occasionally used to refer to a non-square rectangle. A rectangle with vertices ABCD would be denoted as ABCD.

The word rectangle comes from the Latin rectangulus, which is a combination of rectus (as an adjective, right, proper) and angulus (angle).

A crossed rectangle is a crossed (self-intersecting) quadrilateral which consists of two opposite sides of a rectangle along with the two diagonals (therefore only two sides are parallel). It is a special case of an antiparallelogram, and its angles are not right angles and not all equal, though opposite angles are equal. Other geometries, such as spherical, elliptic, and hyperbolic, have so-called rectangles with opposite sides equal in length and equal angles that are not right angles.

Rectangles are involved in many tiling problems, such as tiling the plane by rectangles or tiling a rectangle by polygons.