In mathematics, a great circle or orthodrome is the circular intersection of a sphere and a plane passing through the sphere's center point. == Discussion == Any arc of a great circle is a geodesic of the sphere, so that great circles in spherical geometry are the natural analog of straight lines in Euclidean space.
In mathematics, a great circle or orthodrome is the circular intersection of a sphere and a plane passing through the sphere's center point. == Discussion == Any arc of a great circle is a geodesic of the sphere, so that great circles in spherical geometry are the natural analog of straight lines in Euclidean space.
Source: Wikipedia "Great circle" · CC BY-SA 4.0
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