What is Longitude - NCERT Geography Class 6
Channel: Arinjay Academy
Date: 20/08/2013

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The longitudes are semi circles which converge on both the poles and are measured east or west of the prime meridian. The Prime Meridian, which passes through the Royal Observatory, Greenwich, England, was has been named as 0° longitude or the central meridian. Longitudes east of the Prime Meridian are called the Eastern Longitudes while the longitudes West of the Prime Meridian are called the Western Longitudes. The meridians intersect the equator at right angles. Unlike the parallels of latitude, they are all equal in length.
Therefore, we now understand that latitudes and longitudes together form a giant network of grids which help us locate any point on the earth.

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