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A simulated math problem in the senior high school entrance examination
Suppose the distance between points A(a, b) and B(c, d) is:

(a-b)^2=(c-d)^2

You already know four points, so you can use the unknown number A to find the distance between the four sides, and add them up to become the formula of n (a+x) 2+y x) 2+y.

Then its minimum circumference is y.

I don't think so because the process algorithm is too complicated.