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A cone standing on its base is cut by a plane perpendicular to the axis. The true shape of the section appears in

  • A.the plan
  • B.the elevation
  • C.an auxiliary view only
  • D.neither principal view

Answer: A

Correct answer: the plan

A cut perpendicular to a vertical axis is a horizontal plane, and the plan is the view looking down on a horizontal plane - so the section appears there undistorted. This is the one case in which no auxiliary view is needed, because a principal view already lies parallel to the section.

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