find the surface area of a sphere of radius
10.5cm
5.6cm
14cm
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Step-by-step explanation:
(i)Surface area of a sphere=4×π×r²
=4×22/7×10.5×10.5cm²
=1386cm²
(ii)Surface area of a sphere=4×π×r²
=4×22/7×5.6×5.6cm²
=394.24cm²
(iii)Surface area of a sphere=4×π×r²
=4×22/7×14×14cm²
=2464cm²
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