我们可以把斯图尔特定理直接应用于三角形的中线上。
We can apply Stewart's theorem directly to the median of a triangle.
看起来毕达哥拉斯的定理，似乎来自于欧几里德的三角形理论，从欧几里德几何学的发现中可以简单地推理出来。
It seems that the proof of Pythagoras's theorem comes pretty much from just consulting the ideas of Euclidean triangle, the exhume of Euclidean geometry and simply doing inferences from those.
Math Glossary: 这里可以查找像算盘、泰勒斯定理，钝角三角形等等更多的单词以及概念。
Look up words and concepts like abacus, Thales’ theorem, obtuse triangle and a lot more in this special site.
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