translation.en: So a more direct one, one that gives you more of the feeling of math, is something closer to Pythagoras' own proof, which goes like this: so here we have this triangle, and if we surround that C square with three more triangles and we copy that, notice that we can move those triangles down like this.
translation.zh: 有一种更直接的方式，它可以让你更好的体验到数学之乐趣 毕达哥拉斯自己采用的就是类似的证明方法 这里有一个三角形 假如我们在正方形周围 放几个小三角形 大家注意 我可以这样子移动这几个三角形