626
Hmmm...
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

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This is a science community. We use the Dawkins definition of meme.
Technically there is a notation for parallel lines so you can't actually assume that, but I agree with everyone else that this would have been funnier if it added up to 180 degrees.
Btw. PSA to young folks, that notation looks like > on each line and some standardized tests will fucking get you on a technically with that shit, especially with the "it's impossible to know" answer being an option.