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The value of x (sh.itjust.works)
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[-] TheOakTree@lemm.ee 20 points 1 year ago* (last edited 1 year 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 19 points 1 year ago

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

[-] TheOakTree@lemm.ee 10 points 1 year ago

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°

[-] TheOakTree@lemm.ee 6 points 1 year ago

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

[-] starman2112@sh.itjust.works 2 points 1 year 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 year 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
1119 points (100.0% liked)

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