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The national flag of the United States, often referred to as the American flag or the U.S. flag, consists of thirteen horizontal stripes, alternating red and white, with a blue rectangle in the canton bearing fifty small, white, five-pointed stars arranged in nine offset horizontal rows, where rows of six stars alternate with rows of five stars.
The flag should never touch anything physically beneath it. [9] An urban myth claimed that if the flag touched the ground, it had to be destroyed under the Flag Code; however, it has been affirmed by the American Legion and state governments that this is not the case. [10] [11] The flag should never be used as wearing apparel, bedding or drapery.
See also: Flags of the U.S. states and territories A 2.00 m × 1.70 m oil painting showing historical US flags. This is a list of flags in the United States describing the evolution of the flag of the United States, as well as other flags used within the United States, such as the flags of governmental agencies. There are also separate flags for embassies and ships. National flags Main article ...
Bouteloua dactyloides, commonly known as buffalograss or buffalo grass, is a North American prairie grass native to Canada, Mexico, and the United States. It is a short grass found mainly on the High Plains and is co-dominant with blue grama (B. gracilis) over most of the shortgrass prairie.
Equal chords are subtended by equal angles from the center of the circle. A chord that passes through the center of a circle is called a diameter and is the longest chord of that specific circle. If the line extensions (secant lines) of chords AB and CD intersect at a point P, then their lengths satisfy AP·PB = CP·PD (power of a point theorem).
In 1892 the American Committee of Ten recommended the same strategy for the United States, but American teachers had already been developing the habit of teaching Geometry has a separate course. The American high-school geometry curriculum was eventually codified in 1912 and developed a distinctive American style of geometric demonstration for ...
Chord diagrams are conventionally visualized by arranging the objects in their order around a circle, and drawing the pairs of the matching as chords of the circle. The number of different chord diagrams that may be given for a set of 2 n {\displaystyle 2n} cyclically ordered objects is the double factorial ( 2 n − 1 ) ! ! {\displaystyle (2n ...
The former involves grazing the interior of a circular area, and the latter, grazing an exterior of a circular area. For the exterior problem, the constraint that the rope can not enter the circular area dictates that the grazing area forms an involute. If the goat were instead tethered to a post on the edge of a circular path of pavement that ...