Any line whose points are the same distance below or above an optical level's line of sight is also level.

Name: Any line whose points are the same distance below or above an optical level's line of sight is also level.
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Question

Quizplus · Accepted Answer

This statement is true. A line that is equidistant above or below an optical level's line of sight is also considered to be level. This is because the line follows the curvature of the Earth, making it appear flat and level to the observer.

Any Line Whose Points Are the Same Distance Below or Above