So, in order to find out the total surface area of a cylinder, we calculate the curved surface area and the area of two circles.Ĭurved Surface Area (CSA) = Circumference × Height The cylinder consists of two circles and one curved sheet. The total surface area defines the total area that it occupies including the bases. Thus, its area is: length × width = 2πr × h. This is because, when the curved face of a cylinder is unfolded, we get a rectangle whose length = circumference of the circle = 2πr and width = height of the cylinder = h. (Note: ‘h’ is the height, ‘r’ is the radius, and the value of π is 22/7 or 3.14 approximately). The formula for cylinder curved surface area is given as,Ĭurved Surface Area (CSA) = 2πrh square units space occupied between the two parallel circular bases is known as its CSA. The area formed by the curved surface of the cylinder i.e. The curved surface area is also termed the lateral surface area. Let us learn about the above cylinder formulas in detail. In all these formulas, 'r' represents the base radius and 'h' represents the height of the cylinder. Total surface area of cylinder = 2πr(h+r).Lateral Surface Area (LSA) or Curved Surface Area (CSA) of cylinder = 2πrh.Likewise, the cylinder has three major formulas related to its surface areas and volume. Look at the image below to get an overview of all four types of cylinders explained above.Įvery three-dimensional geometric figure has a minimum of 2 major formulas, surface area, and volume. there is some space or void present inside. It is different from the right circular cylinder since it is hollow in nature, i.e. The point of the axis is common and is perpendicular to the central base. Right Circular Hollow Cylinder or Cylindrical Shell: It consists of two right circular cylinders bounded one inside the other.
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