Find the radius of sphere whose surface area is 4 pi r square cm square
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4×22÷7×r^2= 4×22÷7×r^2×cm^2
4×22÷7 get cancelled on both sides
r^2=r^2cm^2
root on both sides
r=r cm
radius= r cm^2
4×22÷7 get cancelled on both sides
r^2=r^2cm^2
root on both sides
r=r cm
radius= r cm^2
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