Above is an image of aMöbius stripwiththreehalf twists.
我们得到什么形状切割后沿着dashed line?
Details and Assumptions:
A half twist is a \(180^{\circ}\) rotation of one side of the paper before you stick them together.
We define a twisted loop to be a loop with a positive even number of half twists.
byIsaac Buckley