AMC 8 2011 Problem 7

AMC8 2011 年第 7

面积与周长(综合)★★☆☆☆
Each of the following four large congruent squares is subdivided into combinations of congruent triangles or rectangles and is partially bolded. What percent of the total area is partially bolded?
下面 4 个大的全等正方形,每个都被分成几个全等的三角形或者矩形,并且一部分用粗体表示。那么粗体部分的面积占了总面积的百分之多少?
  1. A.1212\displaystyle 12\frac{1}{2}
  2. B.20
  3. C.25
  4. D.3313\displaystyle 33\frac{1}{3}
  5. E.3712\displaystyle 37\frac{1}{2}

正确答案 · Correct Answer

C

解析 · Solution

解析整理中

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