Sport in the United Arab Emirates Dubai Autodrome, opened in 2007, hosted international races in it first years of activity. Its main race is the Dubai 24 Hour endurance race, held since 2009 Abu Dhabi has hosted Formula One races there from the 2009 season onward. The Abu Dhabi Grand Prix is held at the 5.6 km Yas Marina Circuit, located on Yas Island and includes street and marina sections similar to Circuit de Monaco. The UAE hosts Dubai Sevens round of the IRB Sevens World Series. Previously this was held at Dubai Rugby Ground, but from 2008 onwards it has been held at the new
Circuit rank of any planar graph with the same vertex set, is called the meshedness coefficient. For a connected planar graph with edges and vertices, the meshedness coefficient can be computed by the formula Here, the numerator formula_5 of the formula is the circuit rank of the given graph, and the denominator formula_6 is the largest possible circuit rank of an -vertex planar graph. The meshedness coefficient ranges between 0 for trees and 1 for maximal planar graphs. The circuit rank controls the number of ears in an ear decomposition of a graph, a partition of the edges of the graph into