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On a Tissot's indicatrix, the AREA of the ellipse indicates

  • A.the length of the central meridian
  • B.departure from equal area
  • C.departure from conformality
  • D.the direction of north

Answer: B

If every ellipse encloses the same area the projection is equal-area, whatever their shapes. Eccentricity is the separate signal and reports on angles, which is why the two properties can be read independently from the same diagram.

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