# Cubes

One cube is an inscribed sphere and the other one described. Calculate the difference of volumes of cubes, if the difference of surfaces in 257 mm2.

Correct result:

V1-V2 =  512.6 mm3

#### Solution:

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

Petr
S - surface area of cube
V - volume of cube(s)

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