a) \(\frac{9}{1}\)
b) \(\frac{1}{3}\)
c) \(\frac{3}{1}\)
d) \(\frac{1}{9}\)
A balloon’s radius increases 3 times when the air is pumped in it. If the surface area of the balloon after pumping the
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A balloon’s radius increases 3 times when the air is pumped in it. If the surface area of the balloon after pumping the
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