Right Circular Cylinder Basics

Go back to  'Mensuration-Solids'

The following figure shows a right circular cylinder:

Circular cross-section of cylinder

 

Note that the cross-section of a right circular cylinder is a circle, and the axis of the cylinder is perpendicular to the base.

Below is an example of a right cylinder which is not circular (the cross-section is not a circle):

Non-circular cross-section of cylinder

 

Below is an example of a circular cylinder which is not right (the cross-section is circular, but the axis is not perpendicular to the base):

Cylinder, not perpendicular to base  

From now on, we will only discuss right circular cylinders, and refer to them as simply cylinders. Observe that a cylinder’s dimensions can be specified by two parameters: the radius r of the flat face (or the base), and its height h, as shown below.

Cylinder perpendicular to base

Learn math from the experts and clarify doubts instantly

  • Instant doubt clearing (live one on one)
  • Learn from India’s best math teachers
  • Completely personalized curriculum