Question

What are gr8 circle routes

Answer 1

The shortest course between two points on the sphere is the great circle routes.

Answer 2

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Using a globe and some string is easier. The shortest route between any two points on the earth's surface is called a great circle. Although air routes look curved on flat maps, airliners do try to fly straight lines between cities.

Great circle route. ... Great circle route, the shortest course between two points on the surface of a sphere. It lies in a plane that intersects the sphere's centre and was known by mathematicians before the time of Columbus.

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