A sphere has volume V=43πr3V = \frac{4}{3}\pi r^3V=34πr3. If r=0.5r = 0.5r=0.5, what is VVV in terms of π\piπ?
16π\frac{1}{6}\pi61π
13π\frac{1}{3}\pi31π
23π\frac{2}{3}\pi32π
112π\frac{1}{12}\pi121π