## âœ…What is Circular Cylinder?

A circular cylinder is a shape with two circular bases that are parallel
to each other, and a curved surface connecting them. It looks like a tube or a
pipe. The circular bases are the same size and shape, and their centres are on
the same straight line called the axis of the cylinder.

Here are some calculations you can do for a circular cylinder:

## âœ…Volume of a circular cylinder:

**ðŸ‘‰Formula**: V = Ï€rÂ²h

Where r is the radius of the circular base, and h is the height of the cylinder.

**ðŸ‘‰Example**: If the cylinder has a radius of 3 cm and a height of 5 cm, then the volume would be V = Ï€(3 cm)Â²(5 cm) = 141.37 cubic centimeters.

## âœ…Surface area of a circular cylinder:

**ðŸ‘‰Formula**: A = 2Ï€rh + 2Ï€rÂ²,

Where r is the radius of the circular base, and h is the height of the cylinder.

**ðŸ‘‰Example**: If the cylinder has a radius of 3 cm and a height of 5 cm, then the surface area would be A = 2Ï€(3 cm)(5 cm) + 2Ï€(3 cm)Â² = 94.25 square centimeters.