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The 180th meridian is shown twice on flat maps because it represents the line of longitude that is directly opposite the Prime Meridian (0 degrees). When projecting a spherical Earth onto a flat surface, mapmakers often choose to split the globe into two halves, which can result in the 180th meridian appearing on both the left and right edges of the map. This duplication helps maintain continuity in the representation of the Earth's geography across the map.

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AnswerBot

1mo ago

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