this post was submitted on 08 Jun 2025
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memes

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A collection of some classic Lemmy memes for your enjoyment

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[–] joel_feila@lemmy.world 36 points 5 hours ago

The interior angles need to be equal πŸ€“

[–] burgersc12@mander.xyz 36 points 5 hours ago (3 children)

Does no one understand this is a joke, talking about parallel lines and mathematical proofs is pointless when its a fucking meme

[–] the_trash_man@lemmy.world 14 points 4 hours ago (1 children)

Its wrong though so the joke falls flat

[–] burgersc12@mander.xyz 4 points 4 hours ago

Didn't realize jokes have to be literally correct

[–] CyberEgg@discuss.tchncs.de 11 points 4 hours ago (2 children)

We do understand it's a meme and a joke. Just not a very good one, because one can easily poke holes into it.

[–] daddycool@lemmy.world 0 points 1 hour ago (1 children)

Just not a very good one, because one can easily poke holes into it.

That's not how jokes work.

[–] CyberEgg@discuss.tchncs.de 2 points 46 minutes ago

Depends on the joke.

[–] burgersc12@mander.xyz 1 points 4 hours ago (1 children)

Its supposed to be absurd, taking it seriously makes the already bad joke even worse

[–] CyberEgg@discuss.tchncs.de 8 points 3 hours ago

It's not about taking it seriously. The meme wants to be a technically correct-meme, where a thing fulfills another things definition and thereby could be deemed the other thing - which creates the absurdity the meme lives off of. But in order for that kind of humour, there cannot be obvious holes in the logic of the joke and these obvious holes are very present in this meme.

[–] InternetCitizen2@lemmy.world 6 points 5 hours ago

These are parallel too. They just look that way because they are project on to the euclidean plain.

[–] umbrella@lemmy.ml 18 points 5 hours ago* (last edited 5 hours ago)

ITT: math people going "listen here you little shit"

[–] Pulptastic@midwest.social 30 points 7 hours ago (2 children)

A square must also have two pairs of parallel sides.

[–] MBM@lemmings.world 3 points 3 hours ago

No it doesn't. Right angles + equal length is a sufficient condition

[–] semperverus@lemmy.world 4 points 5 hours ago

Calculus can find you two pairs of parallel sides, right there on the circle!

[–] Ghyste@sh.itjust.works 27 points 7 hours ago (3 children)

I get downvoted for bringing it up, but for fuck's sake you're dumping literally everything into this community regardless of the fit. There are a dozen (I'm estimating) other communities that could benefit from the content you post but you have thus far insisted on only posting here.

Can you at least make the tiniest effort to spread content to other communities that would benefit from the increased views and potential subscriptions?

I shall await the fun police and everything's a meme comments.

[–] weird@sub.wetshaving.social 4 points 3 hours ago

I'm sure there are more than a dozen and you are right. I'm still trying to get the hang of the whole fediverse thing, but so far most of the more niche communities I have tried to interact with are on different servers not federating with each other? Or maybe I'm doing something wrong? Not sure about that one. Also not sure if cross-posting works. I mean I know it works, but do those posts federate correctly? Can other fediverse apps see them correctly?

[–] ObtuseDoorFrame@lemm.ee 16 points 7 hours ago

At least it's better than endless American politics.

Thank you for calling it out. Had a look at post history and I agree, blocked. Lemmy is attracting all sorts of random noise lately.

[–] halcyoncmdr@lemmy.world 94 points 11 hours ago* (last edited 11 hours ago) (1 children)

Someone never had to deal with mathematical proofs, only layman's definitions.

All properties of a parallelogram apply:

  • Opposite sides are parallel
  • Opposite sides are congruent
  • Opposite angles are congruent
  • Consecutive angles are supplementary
  • Diagonals bisect each other

AND

  • All angles are congruent
  • All sides are congruent
  • Diagonals are congruent
  • Diagonals are perpendicular
  • Diagonals bisect opposite angles
[–] Eatspancakes84@lemmy.world 2 points 2 hours ago

Of course, but such strict definitions only come about because smart people come up with examples like OP when you don’t add the full definition.

[–] TheLeadenSea@sh.itjust.works 115 points 11 hours ago (2 children)

Straight lines. Also two sets of parallel lines. This is one definition of a square, but not the common one.

[–] mcqtom@lemmy.world 37 points 11 hours ago* (last edited 11 hours ago) (2 children)

I believe these lines are straight with a black hole at the centre.

[–] flandish@lemmy.world 20 points 10 hours ago

straight, gay, lines are lines. let them be.

[–] TheLeadenSea@sh.itjust.works 10 points 11 hours ago (1 children)

If that's so, the angles are probably not right angles.

[–] lugal@sopuli.xyz 4 points 10 hours ago

None of the angles looks wrong either

[–] supernicepojo@lemmy.world 2 points 10 hours ago (2 children)

Can straight be defined in a nonlinear environment?

[–] Zkuld@lemmy.world 2 points 2 hours ago

I would guess on a sphere these can be straight yes: The pole goes into the center of cicular thing and radius of the sphere needs to put the other arc on one latitude.

[–] NateNate60@lemmy.world 2 points 8 hours ago (2 children)

Euclid's first postulate: Give two points, there exists exactly one straight line that includes both of them.

[–] Eatspancakes84@lemmy.world 1 points 2 hours ago

Counterexample: North and Southpole on Earth.

[–] supernicepojo@lemmy.world 2 points 3 hours ago

This only applies in 2nd order real space. Euclidean geometry aside, I agree with at least one line could exist between two points

[–] DeusUmbra@lemmy.world 14 points 8 hours ago

Dammit Diogenes, this is why we don't allow you in the geometry class anymore.

[–] jim3692@discuss.online 14 points 9 hours ago

Solution:

Explanation:

  1. in order for the straight lines to be 90 deg with the circles, they must be radii of circles with same central point

  2. the length of an arc is defined as c = r * ΞΈ (where r is the radius, and ΞΈ is the angle)

  3. we define the inner circle with radius r₁ and its arc L₁ = r₁ * θ₁

  4. we define the outer circle with radius rβ‚‚ and its arc Lβ‚‚ = rβ‚‚ * ΞΈβ‚‚

  5. Because of (1), θ₁ + ΞΈβ‚‚ = 2Ο€

  6. To create the shape, L₁ = Lβ‚‚ = rβ‚‚ - r₁

If you start replacing and solving, you will get a 2nd grade quadratic, which has a positive and a negative solution. The positive solution is that magic number.

[–] slazer2au@lemmy.world 30 points 11 hours ago (1 children)

If it clucks likes a chicken and scratches like a chicken, it's Man.

[–] TheLeadenSea@sh.itjust.works 12 points 11 hours ago (1 children)

I got that reference!Behold, a featherless biped!

[–] NateNate60@lemmy.world 9 points 8 hours ago

And for those who don't: Plato, a Greek philosopher, was putatively asked by a student while teaching at the Academy what the definition of a man (human) was. Plato responded that a man is a "featherless biped".

Diogenes, another Greek philosopher and infamous quick-wit, caught wind of this and thought that was the dumbest thing ever, so he gate-crashed one of Plato's lectures and pulled out a chicken which had all of its feathers plucked out and said "Behold, a man!".

[–] PP_BOY_@lemmy.world 20 points 11 hours ago (2 children)

Learned this one in 6th grade geometry: drawing a square in thr corner doesn't make it 90Β°

[–] Mr_Fish@lemmy.world 11 points 11 hours ago

But these are all right angles, as long as the two arcs are centered on the same point as the intersection of the two straight lines.

[–] Zagorath@aussie.zone 1 points 10 hours ago

drawing a square in thr corner doesn’t make it 90Β°

No, it doesn't, but it does mean that, for the purposes of your 6th grade geometry question, you can assume the angle is a right angle. Even if it visible looks like 45Β°, if they put a square there, that's 90.

More to the point though, a radius of a circle always meets the circumference at 90 degrees. All the squares in this problem are doing is telling you "this line, if it were continued, would be the radius of the incomplete circle".

[–] Ephera@lemmy.ml 3 points 8 hours ago (1 children)
[–] itsgroundhogdayagain@lemmy.ml 3 points 10 hours ago* (last edited 7 hours ago)

People are taking c/Memes a little too seriously

[–] deegeese@sopuli.xyz 3 points 10 hours ago

The Diogenean Theorem