Surface Area of Cylinders and Cones from "summary" of NCERT Class 10 Mathematics Solutions by JagranJosh
Surface area is the total area that covers the surface of a three-dimensional object. For cylinders and cones, the surface area consists of two parts: the curved surface area and the base area. The curved surface area of a cylinder is the area of the side of the cylinder, while the base area is the area of the circular base. The formula to find the curved surface area of a cylinder is 2πrh, where r is the radius of the base and h is the height of the cylinder. The formula to find the base area of a cylinder is πr^2, where r is the radius of the base.
To find the total surface area of a cylinder, we add the curved surface area and the base area together. The formula for the total surface area of a cylinder is 2πrh + 2πr^2, or 2πr(h + r).
Similarly, for cones, the curved surface area is the area of the side of the cone, while the base ...
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