Learn how to calculate the curved surface area and the total surface area of a cylinder using formulas and diagrams. See solved examples for different types of cylinders and open cylinders. The curved surface area of a cylinder (CSA) is defined as the area of the curved surface of any given cylinder having a base radius ‘r’, and height ‘h’, It is also termed as Lateral Surface Area (LSA). Learn about curved surface area cylinder formula topic of Maths in details explained by subject experts on vedantu.com. Register free for online tutoring session to clear your doubts. Learn how to calculate the curved surface area of a cylinder using the formula C.S.A. = 2πrh. See examples, definitions and diagrams of cylinders and their areas.