What is the volume and surface area of a cube with side length 6dm? Xiaohong observes the answers to the two questions and thinks that the numbers are the same, so the answers are the same. What do you think and why?
棱长6dm的正方体的体积和表面积各是多少？小红观察两个问题的解答，认为得数是一样的，所以答案相同．你是怎么看的，为什么？
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