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A figure 8 loop is defined as two circles touching at a point. I need to show that a torus can be made by attaching a disc to a figure 8 loop.

I think that there may be some clever way to glue the disk to the two circles of the figure 8, but in truth I have no idea.

  • Would this wikipedia picture help? https://upload.wikimedia.org/wikipedia/commons/thumb/8/81/Torus_cycles.svg/220px-Torus_cycles.svg.png – HSN Oct 17 '17 at 10:55
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    MixedMath's answer here should help you https://math.stackexchange.com/questions/82553/torus-construction –  Oct 17 '17 at 10:56
  • Okay yes I understand it now! Thank you both so much! – Fahrenheit997 Oct 17 '17 at 10:58

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