Cylinder

cylinder or role an object with ash and lead-real on these ash is everywhere the same in the ordinary spraakgebruik as a doorsnede. One speaks also of role. More commonly is possible the doorsnede also are. In become the term cylinder still further généralised. The name comes of the Greek?????????, what means roles.

The oppervlak of a cylinder is three-dimensional. The cylinder with z ash as ash and xy-vlak as a ground area become Cartesien coordinates as follows described:

<math>\left(\frac{x}{a}\right)^2 + \left(\frac{y}{b}\right)^2 = 1</math>

and

<math>0\leq z \leq h</math>

This comparison is for a cylinder with an ellipse as a ground area. As a a and b to each other equal is the description of the cylinder with a circle arises as a ground area.

If an ordinary cylinder (with circular ground area) has an altitude h, and the ground area a jet r, then it is of the cylinder right to:

<math>V = \pi r^2 h</math>

The oppervlak of a cylinder can be as it were rolled off

of, to under and bovenzijde, cylinder concluded are equal to:

<math>A = 2 \pi r^2 + 2 \pi r h</math>

the oppervlak of an open cylinder is equal to:

<math>A = 2 \pi r h</math>

Applications

The cilindervorm know a lot of applications. The combustion chambers in are for example cylindrical and them cylinders are also called. The volume of cylinders of combustion engines becomes cylinder contents called, and generally expressed cc or litres.

Also long, straight fail, like for example uses for water piping, gasleidingen etc. to be cylindrical.