Question

Definition of Prime Meridian

Answer 1

Hey!!!

A prime meridian is a meridian in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its anti-meridian form a great circle. This great circle divides a spheroid, e.g., Earth, into two hemispheres.

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Answer 2

Heya!!

The meridian running through Greenwich, England, from which longitude east and west is called the Prime Meridian.

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