A child make a ball for playing by crushing the used newspaper in ball shape of radius of 10.5cm and taped it all around
A)if the width of the tape is 5.5cm ,how much length of the tape is used?
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TSA of sphere = area of tape
4*22/7*r^2=l*b
4*22/7*10.5*10.5=5.5*l
l=252 cm
4*22/7*r^2=l*b
4*22/7*10.5*10.5=5.5*l
l=252 cm
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