Question

Line parallel to the mean spheroidal surface of earth is

Answer 1

A level surface: It is any surface parallel to the mean spheroidal surface of the earth e.g. surface of a still lake. Since the earth is a oblatespheroid, a level surface may be regarded as a curved surface, every point on which is equidistant from the center of the earth. It is normal to the plumb line at all points.

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Answer 2

Line parallel to the mean spheroidal surface of earth is Level Line.

Explanation:

• A level surface is defined as a curved surface which at each point is perpendicular to the direction of gravity at the point.
• Level surface is always curved.
• Level line is a line lying in a level surface.

• Line parallel to the mean spheroidal surface of earth is Level Line.