Consider two points fixed in space and in between it there is a thread connected two those end points which have length greater than the line joining both points , now if someone wants to maximize its area between the line segment joining the points and the curve of thread , why the shape needs to be a part of circle? Is there a simple proof ?
2026-03-11 23:19:17.1773271157
Proof which shows the shape taken by thread to maximize area is a circle portion part?
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