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The exposed area of an object is usually called the surface area. For example a dice has 6 exposed faces. If the dice was a 2x2x2 cm cube each face would have an area of 4 cm2. Now since each face has the same area it would have a surface area of 4 x 6 = 24 cm2.
It is the surface area of the two ends plus the surface area of the curved surface. Surface area of each end is pir2 Surface area of the curved surface is 2pirh Total surface area = 2pir2 + 2pirh
To obtain the ratio of surface area to volume, divide the surface area by the volume.
The same volume of an object, The simplest regular tetrahedron polyhedron, calculate the surface area. The surface area is pentahedral small surface area than the regular tetrahedron Regular hexahedron surface area than the surface area is small pentahedral . . . . If it is known is N-face surface area of ​​the body, there are N +1 is smaller the surface area of ​​the surface When N tends to infinity for a long time, Serve the sphere surface. ------mecose
it is still surface area