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如何用几何知识证明等边三角形外接圆上任意一点到它的三个顶点的距离的平方和为定值？ 知乎 Template






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sketch 521 A hungry caterpillar
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sketch 2992 Dragon by Iky Sahendra Putra
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sketch 3372 Erza by Konstantin Kuznetsov
sketch 5063 Super Meat Boy by Alexander Volodimirovich Danilchenko

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tomski如何用几何知识证明等边三角形外接圆上任意一点到它的三个顶点的距离的平方和为定值？ 知乎 coloring
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如何用几何知识证明等边三角形外接圆上任意一点到它的三个顶点的距离的平方和为定值？ 知乎 sketch template
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如何用几何知识证明等边三角形外接圆上任意一点到它的三个顶点的距离的平方和为定值？ 知乎 sketch template
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如何用几何知识证明等边三角形外接圆上任意一点到它的三个顶点的距离的平方和为定值？ 知乎 sketch template
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解：当知道圆的一条弦长和该弦所对的圆角时，常是经过这条弦的一个端点，作出圆的一条直径，然后利用圆角定理，把所有的已知条件都迁移到刚才所作的 sketch template