2(l*w)+2(l*h)+2(w*h)
* * * * *
That is only true for a cuboid. Other bodies also have surface areas and there are lots of formulae dealing with them.
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The formula for the surface area of a sphere is: 4 pi r 2
It depends on the formula that describes the surface itself. "Curved surface area" is not enough information to answer the question.
Given the surface area, where S=surface area, the formula for finding the volume isV = √(S / 4pi)
No, the formula is far from simple - requiring elliptical integrals.
it stands for the total surface area