Use your protractor to construct an equilateral triangle.
用量个
边
。
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So this leaves us, somewhat disturbingly, with three different possibilities: All triangles really are equilateral, that's just the truth of the universe, or you can use Euclid-style reasoning to derive false results, or there's something wrong in the proof.
因此,这给我们留下了三种不同的可能性,这有点令人不安:所有三角形实际上都是等边的,这就是宇宙的真理,或者你可以使用欧里得式的推理来得出错误的结果,或者证明中有问题。