Ruled surface
= Ruled surface
{wiki=Ruled_surface}
A **ruled surface** is a type of surface in three-dimensional space that can be generated by moving a straight line (the ruling) continuously along a path. In a more technical sense, a ruled surface can be defined as a surface that can be represented as the locus of a line segment in space, meaning that for every point on the surface, there exists at least one straight line that lies entirely on that surface.