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☞ A cylinder is a 3-D figure with a pair of parallel and congruent circular ends. These ends are known as ‘bases’. Thus, the base shape of the cylinder is a circle.
☞ A cylinder can also be defined as the surface formed by points at a fixed distance from a given straight line axis.
☞ The bases of the cylinder are circles connected through their centers by an axis perpendicular to the planes of its bases, with given height h and radius r.
☞ The parameters like surface area, volume and the base area of the cylinder can be found with the radius and height of the cylinder.
☞ When laid out flat, a cylinder has a single curved side that forms a rectangle.
Cylinders can be right or oblique.
The difference between the right cylinder and the oblique cylinder is the side of a right cylinder is perpendicular to its circular bases whereas the side of an oblique cylinder is not perpendicular to its bases.
However, in general, a cylinder refers to a right circular cylinder.
Note: A cylinder shares many of the properties of a prism. Similar to the prisms, the volume is found by multiplying the area of one end of the cylinder (base) by its height.
The two circles at the end of the cylinder and the side of the cylinder which when unrolled is a rectangle should be added to get the surface area of the cylinder.
i.e. the area of the two circles is 2πr2 (i.e. πr2+ πr2) and the area of the unrolled part or the curved outside is 2πrh Therefore,
The volume of a cylinder can be calculated by the formula:
Since the base of a cylinder is a circle, the base area of the cylinder is given by the area of the circle that is:
Using CalculatorHut’s cylinder calculator, you can easily calculate the volume, base area, and surface of any cylinder. Calculations become simple with our cylinder calculator, and simpler too when the dimensions are in decimal values.
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