Calculate the distance from the geographic North Pole to the Geographic South Pole through the center of the earth.

Since the Earth is elliptical, the distance to the center of the Earth along the equator is 6378 km, and from the pole to the center of the Earth is 6356.8 km. In order to know the distance from the North Geographic Pole to the South Geographic Pole, you need to multiply the distance from the North Pole to the center of the Earth by two: 6356.8 x 2 = 12,713.6 km.



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