## ::Cylinder (geometry)

### ::concepts

Cylinder::surface Right::''r'' Geometry::section ''h''::volume Height::units Circular::radius

Intro Common use Other types of cylinders About an arbitrary axis Projective geometry Related polyhedra See also References External links

A **cylinder** (from Greek κύλινδρος – *kulindros*, "roller, tumbler"<ref>κύλινδρος, Henry George Liddell, Robert Scott, *A Greek-English Lexicon*, on Perseus</ref>) is one of the most basic curvilinear geometric shapes, the surface formed by the points at a fixed distance from a given straight line, the **axis** of the cylinder. The solid enclosed by this surface and by two planes perpendicular to the axis is also called a cylinder. The surface area and the volume of a cylinder have been known since deep antiquity.

**Cylinder (geometry) sections**Intro Common use Other types of cylinders About an arbitrary axis Projective geometry Related polyhedra See also References External links

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