find the surface area of a sphere of radius 10.5cm
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Surface area of a sphere =4πr²
Here r=10.5
Surface area=4*22/7*10.5*10.5
=9702/7=1386
Surface area =1386cm²
Here r=10.5
Surface area=4*22/7*10.5*10.5
=9702/7=1386
Surface area =1386cm²
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