Imaginary lines placed vertically on the earth which are used as position coordinates, expressed in degrees, minutes and seconds. The datum is at the Greenwich Meridian, which is in England and is at 0 degrees. From there, we can move 180 degrees East and West. All lines of longitude pass through the North and South pole. Lines of longitude are perpendicular (90 degrees) to the equator
Imaginary lines placed vertically on the earth which are used as position coordinates, expressed in degrees, minutes and seconds. The datum is at the Greenwich Meridian, which is in England and is at 0 degrees. From there, we can move 180 degrees East and West. All lines of longitude pass through the North and South pole. Lines of longitude are perpendicular (90 degrees) to the equator
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