Area and volume of the cylinder
1. Cylinder parts
In the picture, we see several examples of cylinders: an oil drum, a drum, a pencil and a flashlight.
The cylinder has two bases that are two circles and a height which is the perpendicular between the two bases: the side.
AB side is called generatrix because when it turns on the axis O'O creates the lateral surface of the cylinder.
Look at this figure and answer: