Question 1892Navigation General

The correct answer is A) 39°W. The reasoning is that a great circle is the shortest distance between two points on the Earth's surface, and it divides the Earth into two equal halves. Since the great circle crosses the equator at 141°E, it will cross the equator again at the opposite side of the Earth, which is 180° away, or 39°W. The other options are incorrect because: B) 41°E is not the opposite side of the Earth from 141°E, C) 180°E is the same as 0°, which is not the opposite side, and D) 141°W is the same longitude as the first crossing, not the opposite side.