783
PI is what (i.imgur.com)
submitted 11 months ago by genfood@feddit.de to c/science_memes@mander.xyz
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[-] vaseltarp@lemmy.world 99 points 11 months ago

A Pizza with the radius z and the height a has the volume V= Pi×z×z×a

[-] Akasazh@feddit.nl 14 points 11 months ago

How do my pineapple chunks factor into the height?

[-] koorool@feddit.de 10 points 11 months ago

For each piece of pineapple where nea is height of a cone, p is radius of a cone and le equals 1/3, volume is Pi * nea * p * p * le.

You understand now why people don't like pineaaples on their pizzas?

[-] electrogamerman@lemmy.world 3 points 11 months ago

The only reason people like pineapples in pizza is because they make cum taste better

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[-] AllNewTypeFace@leminal.space 71 points 11 months ago

That must be from a Christian homeschooling textbook

[-] tsonfeir@lemm.ee 26 points 11 months ago

It’s really difficult to calculate circumference when the earth is flat.

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[-] abcd@feddit.de 10 points 11 months ago

π ✟ π = 10

[-] jmcs@discuss.tchncs.de 5 points 11 months ago

The bible says π is 3, so they wouldn't get it this wrong.

[-] elvith@feddit.de 19 points 11 months ago

And the Lord spake, saying, ''First shalt thou take out the Holy Pin. Then shalt thou count to three, no more, no less. Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out. Once the number three, being the third number, be reached, then lobbest thou thy Holy Hand Grenade of Antioch towards thy foe, who, being naughty in My sight, shall snuff it.'

[-] CyberTailor@beehaw.org 3 points 11 months ago

Unexpected Monty Python

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[-] F4lcon@discuss.tchncs.de 55 points 11 months ago

It's to make the numbers simple because they aren't important, the methodology is

[-] TheOakTree@lemm.ee 52 points 11 months ago

I get that, it's like rounding gravitational acceleration (on earth) to 10...

But why don't they just use 3, preceded by a "pi is a little more than 3, but for now we'll round down to 3."

[-] jadero@mander.xyz 27 points 11 months ago

Especially given that using π=3 is accurate enough for most daily use by ordinary people for ordinary things.

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[-] LemmysMum@lemmy.world 27 points 11 months ago* (last edited 11 months ago)

Sure, until you actually need the correct result of the circumference of a circle and think pi is 5.

Misinformation is education. Welcome to the future.

[-] aesopjah@lemm.ee 24 points 11 months ago

Like, at least make it 3 instead of 5. Still allows for mental math

[-] LemmysMum@lemmy.world 14 points 11 months ago

It's fucking pi. It's a constant that will never change in their entire lives, just teach reality the first time instead of making up a thousand little lies to correct later.

[-] fsxylo@sh.itjust.works 12 points 11 months ago

thousand little lies

What do you mean there are more than 3 states of matter?

[-] echodot@feddit.uk 3 points 11 months ago

Wait until they start to learn about quantum foam and super fluids.

[-] aesopjah@lemm.ee 9 points 11 months ago

Gotta cut it off at some point though, right? How many decimals? 10, 4, 1, or 0?

Plus, this is a test not the knowledge delivery. Some thing as 'assume a flat plane with no friction' for a physics test. Yeah it's not 100% accurate but the test taker can be evaluated on the methods

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[-] Reddit_Is_Trash@reddthat.com 8 points 11 months ago

This is what we get when we cater to the dumbest kids in the class.

[-] echodot@feddit.uk 5 points 11 months ago

The dumbest kids in class can't handle algebra.

It's a really bad question for all sorts of reasons. Firstly because they defining π as 5 (it's not even close to the real value) and they never explain what h is.

Also you should probably just use letters everywhere at this point and not use π unless π equals π.

[-] LemmysMum@lemmy.world 3 points 11 months ago

No child left behind = every child left behind.

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[-] UnknownQuantity@lemm.ee 3 points 11 months ago

Then let's teach kids to use Wolfram Alpha.

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[-] bradinutah@thelemmy.club 47 points 11 months ago

"One! Two! Five!" "Three sire!" "Three!"

[-] tigerjerusalem@lemmy.world 39 points 11 months ago
[-] November@feddit.de 19 points 11 months ago
[-] jadero@mander.xyz 5 points 11 months ago

Not necessarily. Calculating the flotation of a cylindrical pontoon using pi=5 will leave you with a boat that sinks!

[-] Kolanaki@yiffit.net 13 points 11 months ago

So it's like a baker's dozen?

[-] xusontha@ls.buckodr.ink 33 points 11 months ago

It's called rounding, honey. Look it up

[-] GrammatonCleric@lemmy.world 55 points 11 months ago

That's a hell of a rounding 😅

[-] xusontha@ls.buckodr.ink 30 points 11 months ago

Yep, it's the secret strategy of rounding to five. Not to a multiple of five, but just five.

[-] blackluster117@possumpat.io 16 points 11 months ago

60% of the time, it works everytime.

[-] agent_flounder@lemmy.one 12 points 11 months ago
[-] dojan@lemmy.world 12 points 11 months ago

In base five it’s fine!

[-] Intralexical@lemmy.world 24 points 11 months ago* (last edited 11 months ago)
[-] SasquatchBanana@lemmy.world 3 points 11 months ago

Well that's a read and a half. I never expected something like that to happen

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[-] Espi@lemmy.world 20 points 11 months ago

At that point just make pi 1 for even easier calculation

[-] Etterra@lemmy.world 19 points 11 months ago

Your conditions are nonsensical, therefore the answer must also be nonsensical.

V = A sculpture of Tom Selleck made out of scalloped potatoes.

[-] siewyuk@monyet.cc 4 points 11 months ago

I would prefer David Hasselhoff made out of hasselback potatoes.

[-] doctorcrimson@lemmy.today 12 points 11 months ago

My math teacher back in school blew my mind once with this:

"If you ever get a funny number like 6.28318530717958647 just divide that by π and see if that fixes it. It equals 2, so the answer isn't 6.283... it's just 2π and that's how you should write your answer. Sometimes you get 1.0471975 well guess what? π/3. Simple. Pi isn't a variable, it is a number and you can just leave it in that form for your answers."

[-] Swedneck@discuss.tchncs.de 5 points 11 months ago

assume pie is in my belly

[-] xantoxis@lemmy.world 5 points 11 months ago
[-] ohlaph@lemmy.world 3 points 11 months ago
[-] LoamImprovement@beehaw.org 3 points 11 months ago

"Pi is exactly five!"

Shocked gasps

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this post was submitted on 01 Oct 2023
783 points (97.6% liked)

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