问题描述：
英语翻译
what is the maximum number of non-overlapping regions into which 3 lines can divide the interior of a circle?
A 4 B 6 C 7 D 8 E 9
答案是C求翻译讲解
what is the maximum number of non-overlapping regions into which 3 lines can divide the interior of a circle?
A 4 B 6 C 7 D 8 E 9
答案是C求翻译讲解
问题解答：
我来补答
三条直线最多能将圆内区域分成无重叠的块数是?
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