# Cubes

One cube is inscribed sphere and the other one described. Calculate difference of volumes of cubes, if the difference of surfaces in 257 mm

^{2}.**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

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**Math student**

What do all those symbols mean? Is there a more simple format...that you could put this in?

#### To solve this example are needed these knowledge from mathematics:

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