Mensuration _ Circular and Hollow Cylinder

A solid surface produced by a line moving parallel to a fixed line, while its end describes a closed figure in a plane is called a cylinder. A cylinder is the limiting case of a prism. This old-fashioned view is utilized in fundamental utilizations of geometry, yet the unpredictable numerical perspective has moved to the endless curvilinear surface and this is the manner by which a cylinder is currently all around characterized in a few present-day parts of geometry and topology. The shift in the straightforward meaning has created some uncertainty with terminology.