AMC 8 1996 Problem 25

AMC8 1996 年第 25 题

概率★★★★☆

A point is chosen at random from within a circular region. What is the probability that the point is closer to the center of the region than it is to the boundary of the region?

在一个圆形区域内随机选取一个点。该点离圆心比离边界更近的概率是多少？

A. $\displaystyle \frac{1}{4}$
B. $\displaystyle \frac{1}{3}$
C. $\displaystyle \frac{1}{2}$
D. $\displaystyle \frac{2}{3}$
E. $\displaystyle \frac{3}{4}$

正确答案 · Correct Answer

A

解析 · Solution

解析整理中

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