Secant line point a "tangent line" and in no points an "exterior line". A "chord" of a circle is the line segment that joins two distinct points of the circle. A chord is therefore contained in a unique secant line and each secant line determines a unique chord. In rigorous modern treatments of plane geometry, results that seem obvious and were assumed (without statement) by Euclid in his treatment, are usually proved. For instance, "Theorem (Elementary Circular Continuity)": If formula_1 is a circle and formula_2 a line that contains a point that is inside formula_1 and a point that is outside of
Maritime Circle Line Maritime Circle Line The Maritime Circle Line (MCL) is a private harbor cruise line and operator in the Port of Hamburg, Germany, established by Gregor Mogi in 2007. The ferry service is operated on a scheduled timetable, connecting a number of Hamburg's maritime visitor attractions in the eastern port area. The Maritime Circle Line is a one-way circle line with eight stops, offering three tours daily from April to September, while the service is less regular during the winter season. The total travel time is some 2 h, with travel time between stops varying between 10 and 20 minutes. The