Sjmarf to People [email protected] • 14 hours agoThe value of xsh.itjust.worksimagemessage-square94fedilinkarrow-up1811arrow-down111
arrow-up1800arrow-down1imageThe value of xsh.itjust.worksSjmarf to People [email protected] • 14 hours agomessage-square94fedilink
minus-square@Maggotylink5•9 hours agoStupid stuff like this is why kids hate math class. Unless the problem says calculate all unmarked angles, those visually 90 degree angles are 90 degrees. It works that way in any non engineering job that uses angles because it’s common sense.
minus-square@[email protected]linkfedilink12•edit-28 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•8 hours agoNope I’m not saying that. I’m saying this is a gotcha question that demotivates learners.
minus-square@[email protected]linkfedilink8•8 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•8 hours agoThe sum of the angles of a triangle are always 180°
minus-square@[email protected]linkfedilink4•8 hours agoYes, I believe I implied this by suggesting that the sum of angles being 190° is absurd.
minus-square@[email protected]linkfedilink1•8 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
Stupid stuff like this is why kids hate math class. Unless the problem says calculate all unmarked angles, those visually 90 degree angles are 90 degrees. It works that way in any non engineering job that uses angles because it’s common sense.
…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