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The perimeter of square  is 2. Two cars start from  and  simultaneously and drive clockwise on the perimeter of square  in the same speed. A drone maintains its location as the midpoint of the two cars. How far did the drone fly after both cars get back to where they started?

 May 1, 2021
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The drone flew a distance of 2 + sqrt(2).

 May 1, 2021

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