A volume of a sphere is given by V  4 πr3 3 where π  22 . Find the value of r (in cm) if the 7 volume of the circle is 2144.66 cm3.

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Answer to a math question A volume of a sphere is given by V  4 πr3 3 where π  22 . Find the value of r (in cm) if the 7 volume of the circle is 2144.66 cm3.

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Rasheed

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Given volume is 2144.66 cm³ \frac{4}{3}\pi r^3=2144.66 i.e. r^3=\frac{2144.66\times3\times7}{4\times22}=511.7939 Therefore, r=8

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