The total area of the surface of a three-dimentional object is called its surface area.Curved surface area of the curved surfaces for the solid. The remaining surfaces of the solid are the flat or the non-curved surfaces. In cone, the flat surface is the circular of base. In a cylinder, the flat surfaces are the top and bottom circular area. A sphere has no flat surface, where as cuboid and a cube have only flat surfaces.
Total surface area=Curved surface area +area of flat surfaces.
volume is the quantity of three dimentional space occupied by a liquid, solid, or gas. common units used to express volume include liters,cubic meters, millilitre,teaspoons etc..