736
Has the imperial system gone to far?
(feddit.org)
Bye, bye, miss American PI.
Maybe Vader some day later, but now it's just about prime.
This was written by an engineer. They rounded up to 5 for the safety factor.
Ha Ha, non-Euclidian geometry go brr. :)
What kind of problem gives you the formula and all variable to replace? At this point, why not just write 5•10²•10=?
Intro to algebra type stuff to make sure you understand the concept of variables in the first place
Pi= 5 in this teachers reality. Circles must look wonky.
It makes it easy to do the math in your head without a calculator. But still , just tossing out pi=5 is not the way to go about creating these problems.
...fractal circumferences can be whatever length you want for any given mean radius...
Even then, I would want them to leave π in the problem itself. That would be much better for this exercise - teaching that you report “exact” values with π still in them.
Eg, if I rewrote this problem, I would expect an answer of 1000π.
Cause reading comprehension is part of the test. Lots of kids will be able to solve that equation, but there's a bunch who can't understand it if it's presented this way.
Honestly here they should have done "round pi to two decimal places" or smth.
One written in Comic fucking Sans
It's official, the observable universe is ~3 times larger!
Man the Americans... everyone knows that π=-10
Nah, π = 3.2.
the Speaker accepted another member's recommendation to refer the bill to the Committee on Swamplands, where the bill could "find a deserved grave"
Lmao
What in the idiocracy
Americans are more fat so they need bigger Pi to keep geometry in touch with reality.
I remember when Pi was monetized, that sounds like Pi Common, only $9.99/mo for 0 significant digits.
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(8 replies)
It went to far and Beck.
It's probably trying to teach kids algebra without using decimals. But it does look messed up. Everyone knows at least 3.14, except kids I guess
I got my daughter to memorize 50 digits of pi when she was 11 or 12 by betting her $50 she couldn’t.
My 7-year-old got obsessed and did it from a YouTube video to 100 places because he was bored.
He also knows base 2 to 65536
My buddy in high school had it memorized it to 700+ digits. He was bored.
My dad told me a rhyme to memorize like 15 digits of pi before I knew what pi is at like eight years old I'm guestimating. I remember it ever since.
... Yet refuses to share it with the world!
It's in a different language.
I'm fine with 3, maybe 4, but 5????
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(5 replies)
It’s clearly just saying that the surfaces on which the ends of the cylinder lie are metric spaces with distances defined using Chebyshev or Taxicab metrics based on pentagonal tilings of the parabolic plane so the ratio of a circle’s circumference to diameter is 5.
Since it’s a cylinder we assume the vertical dimension is Euclidean and voila the math checks out geometrically.
Whoa, amazing!
Astrology is so cool
Calculator not allowed test probably
3.14 would be easy enough to solve this one. r^2*h resolves to 1000, so V would be 3140.
Even if so, the other factors are both 10. How hard can it be...
I didn't get to use a calculator IN CLASS until late in my bachelor studies — forget about using them for tests. In a world with Chatgpt we need to teach in a more sterile environment or standards are going to swing into the ditch. My friend who is a grade school teacher has told me some stories that would make your ears bleed.
This is how you develop trust issues.
In America, numbers are just bigger.
Bigger numbers are better numbers!!!!! The best in the world!!!!!!1!11!!!11!
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this post was submitted on 17 May 2025
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