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- V=43πr3V=43πr3V = \frac{4}{3}\pi {r^3}.
- V=83πr2V=83πr2V = \frac{8}{3}\pi {r^2}.
- V=163πr3V=163πr3V = \frac{{16}}{3}\pi {r^3}.
- V=323πr3V=323πr3V = \frac{{32}}{3}\pi {r^3}.