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The volume of a sphere of radius ‘r’ is obtained by multiplying its surface area byA) 4/3B) r/3C) 4r/3D) 3r |
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Answer» Correct option is: B) \(\frac{r}{3}\) Volume of sphere of radius r = \(\frac 43 \pi r^3\) = \(\frac r3 \times 4 \pi r^2\) = \(\frac r3 \times \) surface area of sphere Hence, the volume of sphere of radius 'r' is obtained by multiplying its surface area by \(\frac r3 \) Correct option is: B) \(\frac{r}{3}\) |
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