Geometry

Question Analysis
This question focuses on the properties of similar spheres.
The main focus is testing the understanding of the fundamental characteristics of sphere similarity, including the relationships between radius, surface area, and volume.

Key Concept Explanation
All spheres are similar because they have the same shape, and the only variable dimension is the radius.
For two similar spheres with radii and , the ratio of their surface areas is , and the ratio of their volumes is

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