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In graph theory, the girth of an undirected graph is the length of a shortest cycle contained in the graph. [1] If the graph does not contain any cycles (that is, it is a forest), its girth is defined to be infinity. [2] For example, a 4-cycle (square) has girth 4. A grid has girth 4 as well, and a triangular mesh has girth 3.
Girth is sometimes used by postal services and delivery companies as a basis for pricing. For example, Canada Post requires that an item's length plus girth not exceed a maximum allowed value. [4] For a rectangular box, the girth is 2 * (height + width), i.e. the perimeter of a projection or cross section perpendicular to its length.
Some examples are the even cycles C 2n, the complete bipartite graphs K n,n with girth four, the Heawood graph with degree 3 and girth 6, and the Tutte–Coxeter graph with degree 3 and girth 8. More generally it is known that, other than the graphs listed above, all Moore graphs must have girth 5, 6, 8, or 12. [ 6 ]
RESULTS: Mean length -2.5 SD was used for the definition of micropenis and was 2.6, 2.5 and 2.3 cm for Caucasian, East-Indian and Chinese babies, respectively (p < 0.05). This is close to the widely accepted recommendation that a penile length of 2.4- 2.5 cm be considered as the lowest limit for the definition of micropenis.
It was also known since Erdős (1959) that, for every and there exist -chromatic graphs with girth . [2] In connection with these two results and several examples including the Chvátal graph, Branko Grünbaum conjectured that for every k {\displaystyle k} and ℓ {\displaystyle \ell } there exist k {\displaystyle k} -chromatic k {\displaystyle ...
It was found that women overestimated the actual size of the penises they experimented with when asked in a follow-up survey. The study concluded that "women on average preferred the 6.5-inch (17 cm) penis in length both for long-term and for one-time partners. Penises with larger girth were preferred for one-time partners." [81]
Crypto influencer allegedly bought millions worth of watches, cars, and gems
Results from LifeStyles condom manufacturer's study of penis size, displayed in inches. The data is listed by percentile (i.e. a male with a 6 in (15.24 cm) penis is greater in length than 70 percent of those measured.) Date: 7 October 2007: Source: Own work based on: Penis percentile.jpg, redrawn in Gnumeric and exported to SVG. Author