AMC 8 2006 Problem 7

AMC8 2006 年第 7

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Circle X has a radius of \pi. Circle Y has a circumference of 8 \pi. Circle Z has an area of 9 \pi. List the circles in order from smallest to largest radius.
圆 X 的半径是 ,圆 Y 的周长是 8 。圆 Z 的面积是 9 。将这 3 个圆按照半径从小到大排序是?
  1. A.X, Y, Z
  2. B.Z, X, Y
  3. C.Y, X, Z
  4. D.Z, Y, X
  5. E.X, Z, Y

正确答案 · Correct Answer

B

解析 · Solution

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