A Möbius strip has only one edge and one side. It is created by taking a strip of paper, giving it a half-twist, and then joining the ends together. If you trace the edge with a pencil, you will return to your starting point after traversing the entire length of both the "top" and "bottom" sides, which are in fact a single surface. | 𝑶𝒑𝒆𝒏𝑴𝒂𝒕𝒉𝑪𝒊𝒓𝒄𝒍𝒆

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