A balloon’s radius increases 3 times when the air is pumped in it. If the surface area of the balloon after pumping the
Posted: Wed Jul 13, 2022 8:05 pm
a) \(\frac{9}{1}\)
b) \(\frac{1}{3}\)
c) \(\frac{3}{1}\)
d) \(\frac{1}{9}\)
b) \(\frac{1}{3}\)
c) \(\frac{3}{1}\)
d) \(\frac{1}{9}\)