A trace or trajectory formed by a set of points in a plane or three-dimensional space satisfies certain conditions.
The following diagram shows a pole \(MN\) and a board \(PQRS\).
\(PQRS\) is attached to \(MN\) to make it movable.
If the side \(PQ\) is rotated \(360{^\circ}\) around \(MN\), what is the three-dimensional shape formed?
The shape formed when the side \(PQ\) is rotated \(360{^\circ}\) around \(MN\) is a right cylinder.
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