Degrees east and west of the prime meridian are measured by boundaries. longitude. latitude. dots.

Degrees east and west of the prime meridian are measured by boundaries is the longitude.

Mercator found that to keep the rhumb lines straight he had to make lines of latitude move away from each other as they moved north and south of the equator. In order to do this, he created a projection that preserved the 90° angles between the latitude and longitude lines.

Explanation:

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