![\sqrt[ { { {? \times \frac{?}{?} \times \frac{?}{?} }^{?} }^{?} }^{?} \times \frac{?}{?} \times \frac{?}{?} ]{?}](https://tex.z-dn.net/?f=+%5Csqrt%5B+%7B+%7B+%7B%3F+%5Ctimes+%5Cfrac%7B%3F%7D%7B%3F%7D++%5Ctimes+%5Cfrac%7B%3F%7D%7B%3F%7D+%7D%5E%7B%3F%7D+%7D%5E%7B%3F%7D+%7D%5E%7B%3F%7D++%5Ctimes+%5Cfrac%7B%3F%7D%7B%3F%7D++%5Ctimes+%5Cfrac%7B%3F%7D%7B%3F%7D+%5D%7B%3F%7D+ "\sqrt[ { { {? \times \frac{?}{?} \times \frac{?}{?} }^{?} }^{?} }^{?} \times \frac{?}{?} \times \frac{?}{?} ]{?}")
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Explanation:
increase in radius = (1.02 - 1.00)/ 1.00 x 100 = 2%
then increase in volume = 4 /3 π 3 x ∆ r / r x 100
= 4 π x 2%
= 8π /100
option 3. is the answet
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