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How to determine latitude and longitude
Understand latitude.
Latitude measures how far a point is north or south of the equator. Since the earth is round, distance from the equator is measured in angular degrees with the equator being 0 degrees and the northernmost point--the north pole--being at 90 degrees.
The southernmost point--the south pole--is also at 90 degrees. Latitude is measured in degrees north when in the northern hemisphere and degrees south when in the southern hemisphere.