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submitted 3 days ago by [email protected] to c/[email protected]
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[-] [email protected] 19 points 2 days 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] 3 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] 47 points 2 days ago

Oh let's get pedantic!

The curved edges technically have infinite "side".

[-] [email protected] 27 points 2 days ago

....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.

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[-] [email protected] 7 points 2 days ago

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.

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[-] [email protected] 11 points 2 days ago

Not if this square is a projection of a curved surface

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[-] [email protected] 8 points 2 days ago

Not a polygon

[-] [email protected] 84 points 3 days ago

The interior angles need to be equal 🤓

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[-] [email protected] 158 points 3 days ago

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)

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

[-] [email protected] 36 points 3 days ago

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

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[-] [email protected] 21 points 2 days ago* (last edited 2 days ago)
[-] [email protected] 122 points 3 days ago* (last edited 3 days ago)

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 3 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] 21 points 2 days ago

Rotate the cone towards you.

Now you see this. 🤯

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

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

[-] [email protected] 3 points 1 day ago

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

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

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

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

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 1 day ago

*munches thoughtfully*

this is terrible, but it tastes okay

[-] [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] 52 points 3 days ago

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

[-] [email protected] 36 points 2 days ago

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 3 days ago

Its wrong though so the joke falls flat

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[-] [email protected] 17 points 3 days ago

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

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[-] [email protected] 10 points 2 days ago

Or the fun part.

[-] [email protected] 8 points 2 days ago

You're having fun wrong!!1one

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[-] [email protected] 16 points 2 days ago* (last edited 2 days ago)

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]

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[-] [email protected] 39 points 3 days ago

A square must also have two pairs of parallel sides.

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[-] [email protected] 34 points 3 days ago* (last edited 3 days ago)

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

[-] [email protected] 9 points 2 days ago

Diogenes go home.

[-] [email protected] 31 points 3 days ago

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.

[-] [email protected] 20 points 3 days ago

At least it's better than endless American politics.

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[-] [email protected] 33 points 3 days ago

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

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[-] [email protected] 9 points 2 days ago

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

[-] [email protected] 6 points 2 days ago
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[-] [email protected] 9 points 3 days ago

Thanks, I hate it.

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this post was submitted on 08 Jun 2025
893 points (92.0% liked)

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