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
Circle Line Downtown War II, retired Coast Guard cutters, and private yachts. Operating as Circle Line-Statue of Liberty Ferry, Inc., this offshoot was contracted by the United States Department of Interior National Park Service to provide exclusive ferry service to both Liberty Island and Ellis Island in 1954. In 1982, the company collectively known as Circle Line split into two separate entities, Circle Line Sightseeing at 42nd Street and Circle Line-Statue of Liberty Ferry, Inc. Meyer and Moran soon came to head Statue of Liberty Ferry. Operating out of Battery Park, Circle Line-Statue of Liberty Ferry, Inc. ran service to Liberty and Ellis