this post was submitted on 10 Feb 2026
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[–] solidheron@sh.itjust.works 1 points 53 minutes ago

My autistic ass is saying "count the corners tri means 3 and angle means those pointy bits"

[–] Zorsith@lemmy.blahaj.zone 8 points 6 hours ago

All I'm saying is, years after the fact, i wish i paid more attention to math and "stupid" proofs. A lot of coding/scripting logic can be derived from them.

[–] Lumidaub@feddit.org 30 points 15 hours ago (2 children)

Imagine your mathematician friend has gone blind and says, "naaaah, pretty sure it's a hexagon, prove me wrong, brah."

All maths problems should be like this.

[–] forrgott@lemmy.zip 11 points 14 hours ago

Mathematical proofs are quite fascinating, actually. At least for my autistic ass!

[–] SinningStromgald@lemmy.world 4 points 15 hours ago* (last edited 15 hours ago) (3 children)

"naaaah, pretty sure it's a hexagon, prove me wrong, brah."

Its got three sides motherfucker how the hell is it a fucking hexagon?

[–] Rhaedas@fedia.io 16 points 15 hours ago (1 children)

The act of saying it has three sides is a proof.

[–] howrar@lemmy.ca 1 points 6 hours ago

Part of a proof. We'd also need to know that the three sides form a polygon.

[–] Lumidaub@feddit.org 6 points 14 hours ago

A hexagon also has three sides.

[–] lime@feddit.nu 2 points 14 hours ago

it could have six sides and three 180 degree angles

[–] qjkxbmwvz@startrek.website 3 points 10 hours ago (1 children)

Triangle, "has 180 degrees," subtends 360 degrees.

Circle, "has 360 degrees," the sum of the interior angles is infinite.

(I'm not actually confused, it's just that "a circle has 360 degrees" and "a triangle has 180 degrees" is a little annoying in that they use different definitions.)

[–] wonderingwanderer@sopuli.xyz 2 points 9 hours ago (1 children)

A circle has 360° discreet 1° angles. While there's a theoretically infinite number of angles within a circle, those angles would need to have an infinitesimally small fraction of a degree. If you divide a circle into 3600 angles, each angle would be 0.1°

A segment of a circle is also measured as an arc corresponding to a vertex facing outwards from the center. A triangle's vertices on the other hand face inwards. The sum of those angles is always 180°. If you juxtapose a circle on top of it, yes, it goes all the way around since it's a closed shape. But if you place the three vertices side by side so that their lines line up, it'll only cover half of the circle.

There's no inconsistency.

[–] qjkxbmwvz@startrek.website 3 points 8 hours ago* (last edited 8 hours ago)

I don't think we're talking about the same thing.

If you take a circle to be the limit of a polygon as the number of sides goes to infinity, then you have infinite interior angles, with each angle approaching 180deg, as the edges become infinitely short and approach being parallel. The sum of the angles is infinite in this case.

If you reduce this to three sides instead of infinite, then you get a triangle with a sum of interior angles of 180deg which we know and love.

On the other hand, any closed shape (Euclidean, blah blah), from the inside, is 360deg basically by definition.

It's just a different meaning of angle.

See, for example, the internal angle sum, which is unbounded: https://en.wikipedia.org/wiki/Regular_polygon

[–] DragonTypeWyvern@midwest.social 3 points 14 hours ago

Well it could be a quadrilateral, for another point was made.

[–] FilthyShrooms@lemmy.world 1 points 11 hours ago

It's just a down-on-it's-luck square