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A regular star polygon is a self-intersecting, equilateral, and equiangular polygon. A regular star polygon is denoted by its Schläfli symbol {p / q}, where p (the number of vertices) and q (the density) are relatively prime (they share no factors) and where q ≥ 2. The density of a polygon can also be called its turning number: the sum of ...
Star polygons and polygonal compounds are the basis for numerous figures of significance in arts and culture. The figure may be the border or interior of the polygon, or one or more closed polygonal paths that include all of the border and also have some legs crossing the interior. The name is derived from the polygon's similarity to the ...
This is a list of flags, arranged by design, serving as a navigational aid for identifying a given flag.Uncharged flags are flags that either are solid or contain only rectangles, squares and crosses but no crescents, circles, stars, triangles, maps, flags, coats of arms or other objects or symbols.
The following flags have a distinctive aspect ratio: Belgium: Aspect ratio of 13:15. El Salvador: Aspect ratio of 189:335. Monaco: Aspect ratio of 4:5. Nepal: The only national flag that is not rectangular, being made with 5 sides, and the only one that is higher than wide. Bordering aspect ratio of ~ 6:5.
A non-convex regular polygon is a regular star polygon. The most common example is the pentagram, which has the same vertices as a pentagon, but connects alternating vertices. For an n-sided star polygon, the Schläfli symbol is modified to indicate the density or "starriness" m of the polygon, as {n/m}.
The regular octagonal star is very popular as a symbol of rowing clubs in the Cologne Lowland, as seen on the club flag of the Cologne Rowing Association. The geometry can be adjusted so 3 edges cross at a single point, like the Auseklis symbol An 8-point compass rose can be seen as an octagonal star, with 4 primary points, and 4 secondary points.
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Five-pointed star. A five-pointed star (☆), geometrically an equilateral concave decagon, is a common ideogram in modern culture. Comparatively rare in classical heraldry, it was notably introduced for the flag of the United States in the Flag Act of 1777 and since has become widely used in flags.