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Hollow Sphere

Hollow Sphere

A hollow sphere is what is left of a sphere with radius

$r_{\scriptsize{2}}$ , when a sphere with radius

$r_{\scriptsize{1}}$ has been removed from it, the two spheres having the same centre and

$r_{\scriptsize{1}}$ <

$r_{\scriptsize{2}}$ .

Formulas

The volume V of a hollow ball is:

$V = \dfrac{4\pi (r_{\scriptsize{2}}^3~ – ~r_{\scriptsize{1}}^3)}{3}$

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