The surface area of a sphere = 4*pi*radius2
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surface area divided by volume
To calculate the surface area of a shape find the area of each side, and then, add all of the areas together. The sum of the areas is the surface area.
The same way you calculate the surface area of any other rectangle: Multiply the length of the wall by its height.
Area = Length * Breadth.
Look for the surface area of a cylinder as well as the circles and triangles