• TheOakTree@lemm.ee
    206·
    3 months ago

    …what? I get that this drawing is very dysfunctional, but are you going to argue that a triangle within a plane can have a sum of angles of 190°?

    • Maggoty@lemmy.world
      195·
      3 months ago

      Nope I’m not saying that. I’m saying this is a gotcha question that demotivates learners.

      • TheOakTree@lemm.ee
        102·
        3 months ago

        I see. I agree completely. The only place this belongs is as a thought experiment on making assumptions in geometry.

      • TheOakTree@lemm.ee
        62·
        3 months ago

        Yes, I believe I implied this by suggesting that the sum of angles being 190° is absurd.

    • starman2112@sh.itjust.works
      22·
      3 months ago

      No, they’re saying that unless you’re already good at this stuff, it’s easy to assume that a visually 90° angle is actually 90° even when it’s not

      • taladar@sh.itjust.works
        1·
        2 months ago

        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.