Question 1891Navigation General

The correct answer is B) 36°S. The latitude of the lower vertex of a great circle is the same as the latitude of the upper vertex, but with the opposite sign. Since the latitude of the upper vertex is 36°N, the latitude of the lower vertex must be 36°S. The other options are incorrect: A) Cannot be determined from the information given - this is incorrect, as the latitude of the lower vertex can be determined from the latitude of the upper vertex. C) 0° - this is incorrect, as the lower vertex must have the same absolute value of latitude as the upper vertex. D) 36°N - this is incorrect, as the lower vertex must have the opposite sign from the upper vertex.