Online Surface Area of a Cylinder Tutors

Online Surface Area of a Cylinder Tutors A cylinder is a 3-dimensional geometric figure which has congruent circular bases on its top and its bottom. These bases are joined by the curved surface of the cylinder which is elongated to a certain height. The total surface area is the sum of all the surface areas of a given geometric shape. This implies that the total surface area of a cylinder is calculated by adding the areas of the bases of the cylinder and the curved surface area of the cylinder. Example 1: What is the total surface area of a cylinder whose radius of the circular base is 4m and the height of the cylinder is 6m? Given: radius, r = 4m Height of the cylinder, h= 6m Total Surface area of cylinder, SA = (2* * r2) + (2* * r* h) This gives: Total surface area of the cylinder, SA= (2* * 42) + (2* * 4* 6) = 32+ 48 = 251.3m2 Therefore, the total surface area of the given cylinder is 251.3m2 Example 2: What is the total surface area of a cylinder whose radius of the circular base is 7m and the height of the cylinder is 10m? Given: radius, r = 7m Height of the cylinder, h = 10m Total Surface area of cylinder, SA = (2* * r2) + (2* * r* h) This gives: Total surface area of the cylinder, SA= (2* * 72) + (2* * 7* 10) = 98+ 140 = 747.7m2 Therefore, the total surface area of the given cylinder is 747.7m2