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Sphere 1 has surface area A1 and volume V1, and shere 2 has surface area A2 and volume V2.
If the radius of shere 2 is four times the radius of shere 1, what is the ratio A2/A1 of the areas?
If the radius of shere 2 is four times the radius of shere 1, what is the ratio A2/A1 of the areas?