# Surface

A surface is a two-dimensional piece of three-dimensional space.

Surface is a middle school-level concept.

### Examples

Cone: | A cone is a pyramid with a circular cross section. |

Cylinder: | A cylinder is a solid of circular cross section in which the centers of the circles all lie on a single line. |

Möbius Strip: | A Moebius strip is one-sided nonorientable surface obtained by cutting a closed band into a single strip, giving it half a twist, and then reattaching the two ends. |

Sphere: | A sphere is the set of all points in three-dimensional space that are located at a fixed distance from a given point. |

Surface of Revolution: | A surface generated by rotating a two-dimensional curve about an axis. |

Torus: | A torus is a closed surface containing a single hole that is shaped like a doughnut. |

### Prerequisites

Parametric Equations: | Parametric equations are a set of equations that together express a set of quantities as explicit functions of a number of independent variables, which are known as parameters. |