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Which are the properties of a Mercator chart?

  • A

    The scale is constant, great circles are depicted as curved lines, rhumb lines are depicted as straight lines.

  • B

    The scales increases with latitude, great circles are depicted as curved lines, rhumb lines are depicted as straight lines.

  • C

    The scales increases with latitude, great circles are depicted as straight lines, rhumb lines are depicted as curved lines.

  • D

    The scale is constant, great circles are depicted as straight lines, rhumb lines are depicted as curved lines.

Refer to figures.
The Mercator projection is a cylindrical map projection. It became the standard map projection for navigation because of its unique property of representing any course of constant bearing as a straight segment.

Mercator chart projection inflates the size of objects away from the equator, so the scale of the Mercator chart increases with latitude and becomes infinite at the poles. So, for example, landmasses such as Greenland and Antarctica appear far larger than they actually are relative to landmasses near the equator, such as Central Africa.

Rhumb lines (RL) in Mercator projection are straight lines, however great circles (GC) are curved lines concave to the equator.

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