More importantly, there is enough information in the numbers alone that you don’t have to rely on estimating any angles from the drawing.

Often they also have multiple slightly different versions of the numbers so people don’t cheat by copying their neighbor’s solution but the diagram is the same.

You mean the simple math of 180 - 180 is too much? Or 100 + 35?

Especially if you are bad at this stuff you know that drawing anything like that accurately is a real pain and nobody who can avoid it will ever do it to represent anything accurately. That is what labels are for.

So why do you assume the diagram depicts Euclidian space? Why do you assume the numbers are base 10? Why do you assume the question is in English, not just some language that looks like English but has different semantics?

There is also no evidence that these are lines at all and not just unconnected points that are offset on a subpixel scale. Or indeed there is no evidence that they are using base 10 numbers or aren’t asking a completely different question in an invented language that just happens to look like English but has totally different semantics.

The people claiming it is unsolvable because one 110/80 degree pair of angles looks like a 90/90 one are ridiculous.

I would go one step further, just get rid of timezone completely and just get up at different times depending on where you are on the planet.

Then why is it okay to harass people with stupid “You just have to be brave enough to ask her?” style posts, those probably hurt anyone who tried that and got rejected.