Sjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 10 days agoThe value of xsh.itjust.worksimagemessage-square129fedilinkarrow-up10arrow-down10
arrow-up10arrow-down1imageThe value of xsh.itjust.worksSjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 10 days agomessage-square129fedilink
minus-squareTheOakTree@lemm.eelinkfedilinkarrow-up0·edit-210 days 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°?
minus-squarestarman2112@sh.itjust.workslinkfedilinkarrow-up0·10 days agoNo, 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
minus-squareNoMoreLurkingToo@startrek.websitelinkfedilinkarrow-up0·10 days agoThe sum of the angles of a triangle are always 180°
minus-squareTheOakTree@lemm.eelinkfedilinkarrow-up0·10 days agoYes, I believe I implied this by suggesting that the sum of angles being 190° is absurd.
minus-squareMaggoty@lemmy.worldlinkfedilinkarrow-up0·10 days agoNope I’m not saying that. I’m saying this is a gotcha question that demotivates learners.
minus-squareTheOakTree@lemm.eelinkfedilinkarrow-up0·10 days agoI see. I agree completely. The only place this belongs is as a thought experiment on making assumptions in geometry.
…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°?
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
The sum of the angles of a triangle are always 180°
Yes, I believe I implied this by suggesting that the sum of angles being 190° is absurd.
Nope I’m not saying that. I’m saying this is a gotcha question that demotivates learners.
I see. I agree completely. The only place this belongs is as a thought experiment on making assumptions in geometry.