this post was submitted on 08 Jun 2025
896 points (91.9% liked)

memes

15473 readers
4297 users here now

Community rules

1. Be civilNo trolling, bigotry or other insulting / annoying behaviour

2. No politicsThis is non-politics community. For political memes please go to [email protected]

3. No recent repostsCheck for reposts when posting a meme, you can only repost after 1 month

4. No botsNo bots without the express approval of the mods or the admins

5. No Spam/AdsNo advertisements or spam. This is an instance rule and the only way to live.

A collection of some classic Lemmy memes for your enjoyment

Sister communities

founded 2 years ago
MODERATORS
 
top 50 comments
sorted by: hot top controversial new old
[–] [email protected] 19 points 1 day ago

I'm not a math major, but I always considered it that a square is a special case of rectangle, a rectangle is a special case of parallelogram, and a parallelogram a special case of a quadrilateral, a quadrilateral a special case of a simple polygon.

This shape isn't a polygon, so it cannot be a square.

[–] [email protected] 2 points 1 day ago

Don't the internal angles need to be 90°? Two of those right angles aren't right angles on the inside.

[–] [email protected] 2 points 1 day ago

Okay, calm down Diogenes

[–] [email protected] 1 points 1 day ago* (last edited 1 day ago)

Lines that intersect a circle like that aren't "right angles" tho, they're called "normal" to the circle - in other words pointing directly toward the center. A normal line is at right angles to a tangent line, but not to a curve.

[–] [email protected] 8 points 1 day ago

Not a polygon

[–] [email protected] 47 points 2 days ago (3 children)

Oh let's get pedantic!

The curved edges technically have infinite "side".

[–] [email protected] 7 points 1 day ago (5 children)

Hey, that's my job!

Also I don't think that's technically the technical classification. I think that sidedness is an attribute that simply doesnt apply to curves.
You can approximate curves with some number of sides, and the approximation gets more accurate as the number approaches infinity, but it doesn't actually have the infinite sides.

load more comments (5 replies)
[–] [email protected] 27 points 2 days ago (10 children)

....and a square has four interior 90 degree angles.

...and based on the infinite number of sides for a curved line aspect, the "90 degree" angles would all be +/- the limit as it approaches zero, so never truly 90 degrees but always an infinite fraction away.

[–] [email protected] 2 points 1 day ago

the angles are interior if you go into the scary world of high level maths and their weird fucking geometries.

this is a square, from a certain point of view

load more comments (9 replies)
[–] [email protected] 11 points 2 days ago (4 children)

Not if this square is a projection of a curved surface

load more comments (4 replies)
[–] [email protected] 21 points 2 days ago* (last edited 2 days ago)
[–] [email protected] 21 points 2 days ago (1 children)

Rotate the cone towards you.

Now you see this. 🤯

[–] [email protected] 2 points 1 day ago (1 children)

uhhh, wait. Under what projection is OP's "square" reduced to an actual square

[–] [email protected] 3 points 1 day ago (1 children)

It's possible, but there needs to be a thickness in addition to the length and width.

[–] [email protected] 2 points 1 day ago (1 children)

Im gonna need more than that as an explanation. Sandwiches too if you're making some

[–] [email protected] 2 points 20 hours ago (1 children)

Imagine you have a cookie cutter in that shape. Cut a cookie as thick as the chord of the largest arc.

View the new vertical surface of the longest arc that is now a cylindrical section.

Viola, square. 😁

[–] [email protected] 2 points 17 hours ago

*munches thoughtfully*

this is terrible, but it tastes okay

[–] [email protected] 84 points 2 days ago (1 children)

The interior angles need to be equal 🤓

load more comments (1 replies)
[–] TheLeadenSea 160 points 3 days ago (8 children)

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

[–] [email protected] 53 points 3 days ago* (last edited 3 days ago) (3 children)

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

[–] [email protected] 35 points 3 days ago

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

load more comments (2 replies)
load more comments (7 replies)
[–] [email protected] 122 points 3 days ago* (last edited 3 days 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
[–] [email protected] 13 points 2 days 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.

[–] [email protected] 54 points 2 days ago (6 children)

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

[–] dontbelievethis 36 points 2 days ago (1 children)

It's not pointless because you can laugh about a joke and then learn something about math.

They don't cancel each other out. They can be at the same place and still work on their own.

[–] [email protected] 16 points 2 days ago

I love memes that are funny on their own, but also provide discussion material.

[–] [email protected] 21 points 2 days ago (2 children)

Its wrong though so the joke falls flat

load more comments (2 replies)
[–] [email protected] 17 points 2 days ago (23 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.

load more comments (23 replies)
[–] [email protected] 10 points 2 days ago

Or the fun part.

load more comments (2 replies)
[–] throwawayacc0430 16 points 2 days ago* (last edited 2 days ago) (8 children)

Wrong. This is a definition of a [pizza] + [the extra peperoni from the other slices that got stuck to that slice because the cutting was imperfect]

load more comments (8 replies)
[–] [email protected] 34 points 2 days ago* (last edited 2 days ago)

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

[–] [email protected] 39 points 2 days ago (6 children)

A square must also have two pairs of parallel sides.

load more comments (6 replies)
[–] [email protected] 9 points 2 days ago

Diogenes go home.

[–] Ghyste 32 points 2 days ago (8 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.

load more comments (8 replies)
[–] [email protected] 6 points 2 days ago (1 children)
load more comments (1 replies)
[–] [email protected] 33 points 3 days ago (2 children)

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

load more comments (2 replies)
[–] [email protected] 9 points 2 days ago

Tut tut, all these maths books promoting unhealthy square shapes, real squares have curves.

load more comments
view more: next ›