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A line lying in a plane must have its traces

  • A.on the reference line in both cases
  • B.at equal distances from the reference line
  • C.coincident with one another
  • D.on the corresponding traces of the plane

Answer: D

Correct answer: on the corresponding traces of the plane

If a line lies in a plane then the point where the line pierces the horizontal plane must also be a point of the plane, and so must lie on the plane’s horizontal trace; the same argument applies to the vertical. This is the standard construction for drawing a plane through a given line.

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