Also a square (minus sloppy editing). (pic8.co)
[Also a square (minus sloppy editing).](https://pic8.co/sh/nU4czh.jpg)
Also a square (minus sloppy editing). (pic8.co)
Can you have a right angle if the one of the lines is curved?
Seems like an analogy to something, hmmm. What could it be?
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