It's a geometry puzzle. Of course they aren't going to get out a protractor to carefully get the 80° drawn to scale. The point of these puzzles isn't that we actually want to know what the angle is. The point is to navigate a maze of logic. (A very short maze in this particular case.)
If a tweet (or similar) makes a statement of fact, either mark it as "satire" in the body or provide the original source link backing up the statement (see rule 6)
It's a geometry puzzle. Of course they aren't going to get out a protractor to carefully get the 80° drawn to scale. The point of these puzzles isn't that we actually want to know what the angle is. The point is to navigate a maze of logic. (A very short maze in this particular case.)
Yes, and in this case, the puzzle was poorly presented and likely unsolvable.