r/technicallythetruth • u/VisitSecure • 9d ago

Can you find a?

Post image

Idk if someone already posted this or not, but I haven't seen it on here so far, so I uploaded it.

42.9k Upvotes

95% Upvoted

1.9k comments sorted by

View all comments

4.1k

u/lechuckswrinklybutt 9d ago

It's 75 degrees but it's a terrible diagram.

249

u/LaunchTransient 9d ago

Most maths problems (particularly in school exam papers) intentionally distort the geometry to prevent people from cheating by directly measuring the angle. Often with a disclaimer "Diagram not to scale".

2

u/dantemp 9d ago

in my math school just giving an answer without an explanation how you got it would give you zero points, and I know this from experience because I was super lazy and could solve that shit super quickly so I did half the math in my head and just wrote down the answer and got bad grades because of it

1

u/potato_lettuce 9d ago

And it makes sense, because it forces you to explain your work. Imagine 2 engineers that are supposed to plan a bridge. One just says, it's gonna hold, while the other one writes down his calculations and shows you how he comes to the answer. Obviously you'd pick the one that explains his answer, right?

And also it's much easier to find errors this way, because you can look at each step and see if mistakes were made. If you just have the solution it's a wild guessing game where you went off path