2814脑筋急转弯中等derivationmedium

Closer to the Center Than to the Origin

题目

A point is chosen uniformly in the unit square. What is the probability that it is closer to the center $(1/2,1/2)$ than to the origin $(0,0)$ ?

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你的答案

数值

probability

只填写数值本身，单位 probability 已固定在输入框右侧。