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Volume of sphere=\frac{4}{3}\pi r^3


 \pi = \frac{22}{7}

r= \frac{2d}{3}


Volume= \frac{4}{3} *\frac{22}{7} *(\frac{2d}{3})^3

⇒= \frac{4}{3} * \frac{22}{7}* \frac{8d^3}{27}

⇒= \frac{94}{21}*\frac{8d^3}{27} units
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