That must be from a Christian homeschooling textbook
PI is what
Submitted 8 months ago by genfood@feddit.de to science_memes@mander.xyz
https://i.imgur.com/hiZ1VHK.jpg
Comments
AllNewTypeFace@leminal.space 8 months ago
tsonfeir@lemm.ee 8 months ago
It’s really difficult to calculate circumference when the earth is flat.
krey@sh.itjust.works 8 months ago
Dood, i think if it’s 5 it’s not flat, it’s bent the other way 🤣
abcd@feddit.de 8 months ago
π ✟ π = 10
jmcs@discuss.tchncs.de 8 months ago
The bible says π is 3, so they wouldn’t get it this wrong.
elvith@feddit.de 8 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.’
agent_flounder@lemmy.one 8 months ago
So the answer is Jesus. Y’know, because “he’s the answer to everything?”
So happy to be atheist now …
F4lcon@discuss.tchncs.de 8 months ago
It’s to make the numbers simple because they aren’t important, the methodology is
TheOakTree@lemm.ee 8 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 8 months ago
Especially given that using π=3 is accurate enough for most daily use by ordinary people for ordinary things.
merc@sh.itjust.works 8 months ago
The only thing I can think of is that they wanted the math to be easy, and somehow thought 3 was easier than 5. But, that’s hard to believe because the only other numbers used were all 10s, so it’s 3101010 vs. 5101010.
LemmysMum@lemmy.world 8 months ago
Sure, until you actually need the correct result of the circumference of a circle and think pi is 5.
aesopjah@lemm.ee 8 months ago
Like, at least make it 3 instead of 5. Still allows for mental math
Reddit_Is_Trash@reddthat.com 8 months ago
This is what we get when we cater to the dumbest kids in the class.
F4lcon@discuss.tchncs.de 8 months ago
So? You think you’ll get the correct result by using 3? Or 3.14? Not quite. You can only get infinitesimally close to the correct result by increasing digits of pi.
And of course, if you really need that circumference for something critical, guess what? You use the things people developed for this very problem, software packages, and so on. And of course, you get it double checked, triple checked.
If it’s assume pi is 5, it’s not misinformation. If they point guns at kids and say it’s 5 for real, then yes.
UnknownQuantity@lemm.ee 8 months ago
Then let’s teach kids to use Wolfram Alpha.
F4lcon@discuss.tchncs.de 8 months ago
Of course. They already use it like it’s some kind of hack. Make it official. Teach them the ins and outs of Wolfram. Better than memorising and regurgitating information, no?
xusontha@ls.buckodr.ink 8 months ago
It’s called rounding, honey. Look it up
GrammatonCleric@lemmy.world 8 months ago
That’s a hell of a rounding 😅
xusontha@ls.buckodr.ink 8 months ago
Yep, it’s the secret strategy of rounding to five. Not to a multiple of five, but just five.
dojan@lemmy.world 8 months ago
In base five it’s fine!
krey@sh.itjust.works 8 months ago
Looks more like recting to me 🤣
Kirkkh@lemm.ee 8 months ago
Rounding to random numbers I guess.
xusontha@ls.buckodr.ink 8 months ago
Not random numbers, just only rounding to five
bradinutah@thelemmy.club 8 months ago
“One! Two! Five!” “Three sire!” “Three!”
tigerjerusalem@lemmy.world 8 months ago
It’s an engineer’s pi.
November@feddit.de 8 months ago
Added safety tolerance
jadero@mander.xyz 8 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 8 months ago
So it’s like a baker’s dozen?
Intralexical@lemmy.world 8 months ago
Indiana at it again.
Classy@sh.itjust.works 8 months ago
Thank you for making the link virtually untappable on mobile.
SasquatchBanana@lemmy.world 8 months ago
Well that’s a read and a half. I never expected something like that to happen
Etterra@lemmy.world 8 months ago
Indiana is its own special flavor of stupid.
mechoman444@lemmy.world 8 months ago
How would you regulate such a thing? Or enforce it? Like… people could still use the correct values to achieve a suitable answer.
Intralexical@lemmy.world 8 months ago
You would probably begin by having the police break into canneries and tyre factories to beat dents into any round objects they produce, then end up having to concentrate enough mass in neighbouring states to distort spacetime to the point where
π
, as measured on a non-Euclidean circle with locally Euclidean constant curvature or radius or something, does in fact equal the number you said it is.
minamoog@lemmy.world 8 months ago
i didn’t choose to be here
Etterra@lemmy.world 8 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 8 months ago
I would prefer David Hasselhoff made out of hasselback potatoes.
Espi@lemmy.world 8 months ago
At that point just make pi 1 for even easier calculation
doctorcrimson@lemmy.today 8 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 8 months ago
assume pie is in my belly
xantoxis@lemmy.world 8 months ago
3142
antidote101@lemmy.world 8 months ago
Maybe they meant pi is 5r or 0.5r?
LoamImprovement@beehaw.org 8 months ago
“Pi is exactly five!”
Shocked gasps
ohlaph@lemmy.world 8 months ago
Haha
vaseltarp@lemmy.world 8 months ago
A Pizza with the radius z and the height a has the volume V= Pi×z×z×a
Akasazh@feddit.nl 8 months ago
How do my pineapple chunks factor into the height?
koorool@feddit.de 8 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?