Answer:
38,772 in. Cubed.
Explanation:
4/3 π r^3
3.14 to estimate for π.
4/3•π•21^3
4/3•π•9261
4.1866•9261
38,772.1026
Rounded: 38,772
This is the exact 38792.386086527 inche
hoped this helped.
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