Dividing a circle into areas "F" can also be derived, which will solve the problem. Its vertices include the "n" points on the circle, referred to as the exterior vertices, as well as the interior vertices, the intersections of distinct chords in the interior of the circle. The "generic intersection" assumption made above guarantees that each interior vertex is the intersection of no more than two chords. Thus the main task in determining "V" is finding the number of interior vertices. As a consequence of the lemma, any two intersecting chords will uniquely determine an interior vertex. These chords are in turn uniquely determined by
Circle Line Sightseeing Cruises September 11 attacks back to New Jersey. After US Airways Flight 1549 was forced to land in the Hudson River in 2009, Circle Line Sightseeing vessels were among the first to respond. Currently, Circle Line Sightseeing operates 8 vessels with an additional two under construction, including: The "Bronx", "Staten Island", and "Liberty" constitute Circle Line's new "Empire"-class boats, which claim to be state-of-the-art, and include modern amenities like digital screens and improved sound systems. Additionally, while she has been retired from service, the "Circle Line X" is retained by Circle Line, who claim to have "big plans" for the vessel.