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S = 4 \pi r^2 \\
V = \frac{4}{3} \pi r^3.
Using these, you'll get r = \sqrt{2}.
 Then V = \frac{4}{3} \pi (\sqrt{2})^3 = \frac{8\sqrt{2}}{3}\pi
4 3 4
how do you come to know that 8p is 8 pie
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