novemberSep 8, 2024

Is this a triangle?

https://lemmy.vg/post/642510

Is this a triangle? - Lemmy.VG

I would have asked this on a math community but I couldn’t find an active one. In a spherical geometry, great circles are “straight lines”. As such, a triangle can have two or even three right angles to it. But what if you go the long way around the back of the sphere? Is that still a triangle?

Show threadzkfcfbzrSep 8, 2024

Would the southern shape here also qualify as a triangle?

What if you went the short way instead of the long way, creating the spherical triangle people usually use - then is the “outside” portion of the triangle itself another triangle?

Show threadnovember
I didn’t even think of that. Another good question!
Sep 8, 2024 at 8:14pmWeb