In the complex plane, what is the length of the diagonal of the square with vertices $4$, $3+5i$, $-2+4i$, and $-1-i$?
Question:
In the complex plane, what is the length of the diagonal of the square with vertices $4$, $3+5i$, $-2+4i$, and $-1-i$?
Answer:
Let's think step by step.

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2\sqrt{13}
In the complex plane, what is the length of the diagonal of the square with vertices $4$, $3+5i$, $-2+4i$, and $-1-i$?
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