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Please explain.

Kindly ask different queries in different thread. Also, refer the similar link for 39 question.
https://www.meritnation.com/ask-answer/question/the-radius-of-the-sphere-is-4-3-0-1-cm-the-error-in-the/units-and-measurements/7958275

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Hello Saba Siddiqui, recall formula V = 4/3 pi r^3
Differentiating 
dV = 4/3 * pi * 3 r^2 dr
Given r = 5.3 cm and dr = plus or minus 0.1 cm
Plug you would have dV with plus or minus
Now percentage error in volume = dV / V * 100
Plugging you get +/- 3 * 0.1/5.3 * 100
Right?
Best wishes
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