2. 外语
  3. The area of a circle with radius aa is less than the area of a square with sides of length ka. Which of the following could be t

The area of a circle with radius aa is less than the area of a square with sides of length ka. Which of the following could be t

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问题 The area of a circle with radius aa is less than the area of a square with sides of length ka. Which of the following could be the value of k? Indicate all such values.
选项 A、4/3
B、5/3
C、6/3
D、7/3
答案C,D
解析 圆的面积为πa2，正方形面积为k2a2。
πa2＜k2a2

故答案为CD。
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