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The surface area of a sphere is 4R^2, where R is the radius of the sp
Sunday 2 October 2016, by
The surface area of a sphere is 4R^2, where R is the radius of the sphere. If the surface area of sphere A is eight times as large as the surface area of sphere B, then the radius of sphere A is how many times the radius of sphere B? A. 2 B. 22 C. 4 D. 2 E. (...)
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