Extracting edges from a planar surface

 From:  mickelsen
4868.1 
I have a fairly simple, flat surface in a drawing. (I will attach the drawing.) I would like to extract the edges of this surface into a line drawing so I can use part of the edges in a loft command. I could just copy the edges except one of them is curve, and it would be nice to just extract it rather than trying to copy it exactly. Is there a way to do this?
Thanks,
Mark
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