Degrees of longitude measure the distance east or west of the Prime Meridian, which is set at 0° in Greenwich, England. Longitude lines, or meridians, run vertically from the North Pole to the South Pole, and are measured in degrees, ranging from 0° to 180° east or west. These degrees help determine global positions and time zones.
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Degrees of longitude are a geographic coordinate system used to specify the position of a point on Earth relative to the Prime Meridian, located at 0° in Greenwich, England. Longitude lines, or meridians, run vertically from pole to pole and measure the distance east or west of the Prime Meridian. The scale ranges from 0° to 180° east or west. These degrees are essential for navigation, mapping, and determining time zones across the globe. By combining longitude with latitude, which measures north-south position, one can pinpoint any location on Earth with precision, making longitude a fundamental concept in geography and cartography.