Right circular cylinder

A right circular cylinder is a cylinder whose generatrices are perpendicular to the bases. Thus, in a right circular cylinder, the generatrix and the height have the same measurements.^[1] It is also less often called a cylinder of revolution, because it can be obtained by rotating a rectangle of sides ${\displaystyle r}$ and ${\displaystyle g}$ around one of its sides. Fixing ${\displaystyle g}$ as the side on which the revolution takes place, we obtain that the side ${\displaystyle r}$, perpendicular to ${\displaystyle g}$, will be the measure of the radius of the cylinder.^[2]

In addition to the right circular cylinder, within the study of spatial geometry there is also the oblique circular cylinder, characterized by not having the geratrices perpendicular to the bases.^[3]