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The value of x (sh.itjust.works)
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[-] TheOakTree@lemm.ee 14 points 1 month ago* (last edited 1 month 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 15 points 1 month ago

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

[-] TheOakTree@lemm.ee 8 points 1 month ago

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

[-] NoMoreLurkingToo@startrek.website 2 points 1 month ago

The sum of the angles of a triangle are always 180°

[-] TheOakTree@lemm.ee 4 points 1 month ago

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

[-] starman2112@sh.itjust.works 0 points 1 month 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 points 1 month 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.

this post was submitted on 08 Oct 2024
1120 points (98.2% liked)

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