Sjmarf to People [email protected] • 16 hours agoThe value of xsh.itjust.worksimagemessage-square96fedilinkarrow-up1859arrow-down112
arrow-up1847arrow-down1imageThe value of xsh.itjust.worksSjmarf to People [email protected] • 16 hours agomessage-square96fedilink
minus-square@[email protected]linkfedilink13•edit-210 hours 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-square@Maggotylink12•10 hours agoNope I’m not saying that. I’m saying this is a gotcha question that demotivates learners.
minus-square@[email protected]linkfedilink8•10 hours agoI see. I agree completely. The only place this belongs is as a thought experiment on making assumptions in geometry.
minus-square@[email protected]linkfedilink1•10 hours agoThe sum of the angles of a triangle are always 180°
minus-square@[email protected]linkfedilink4•10 hours agoYes, I believe I implied this by suggesting that the sum of angles being 190° is absurd.
minus-square@[email protected]linkfedilink1•10 hours 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
…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°?
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.
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.
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