What is a great circle?
A)Any parallel of latitude.
B)The longest distance between two places on the surface of Earth.
C)A circle of circumference whose center coincides with the center of Earth.
D)A correct magnetic compass direction on a flat map.

Question

Quizplus · Accepted Answer

A great circle is a circle on the surface of a sphere (in this case, the Earth) that has the same center as the sphere. It is the largest possible circle that can be drawn on the surface of the sphere and is often used for navigation and calculating distances on the Earth's surface.

What Is a Great Circle