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The scale factor at a point on a map is

  • A.map distance divided by ground distance
  • B.the reciprocal of the map's denominator
  • C.the actual scale divided by principal scale
  • D.principal scale divided by actual scale

Answer: C

A scale factor of one means the scale there matches the generating globe exactly. Values above or below one show where the projection has stretched or compressed, which is why the factor is quoted for standard lines and central meridians.

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