AMC 8 2014 Problem 20
AMC8 2014 年第 20 题
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Rectangle ABCD has sides CD=3 and DA=5. A circle with a radius of 1 is centered at A, a circle with a radius of 2 is centered at B, and a circle with a radius of 3 is centered at C. Which of the following is closest to the area of the region inside the rectangle but outside all three circles?
长方形 ABCD 的边长 CD＝3，DA＝5．圆 A 的半径为 1，圆 B 的半径为 2，圆 C 的半径为 3．那么在长方形内部但在三个圆外部的区域的面积最接近下面哪个数？
- A.3.5
- B.4.0
- C.4.5
- D.5.0
- E.5.5
正确答案 · Correct Answer
B
解析 · Solution
解析整理中
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