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一个西瓜，竖着切 4 刀，要使切得的块数最多

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一个西瓜，竖着切 4 刀，要使切得的块数最多，可以切几块？

参考答案:

要使切得的块数最多，就必须使每次的刀痕都相交，我们可在切第三刀的基础上让第 4 刀的刀痕与前三刀刀痕都相交，如下图。

\"360截图20180809124013752.jpg"

从上图可以看出，竖着切

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