Math Memes

1417 readers

19 users here now

Memes related to mathematics.

Rules:
1: Memes must be related to mathematics in some way.
2: No bigotry of any kind.

founded 1 year ago

MODERATORS

NotAUser@lemmy.blahaj.zone

176

PI is what (i.imgur.com)

submitted 11 months ago by Spzi@lemm.ee to c/mathmemes@lemmy.blahaj.zone

20 comments fedilink hide all child comments

The volume of a cylinder is found using the formula V = πr^2^h. Using π = 5, r = 10 and h = 10. Find the volume V.

you are viewing a single comment's thread
view the rest of the comments

[–] queermunist@lemmy.ml 50 points 11 months ago* (last edited 11 months ago) (4 children)

Probably a test meant to be done without a calculator.

... at least make it =3

[–] Decoy321@lemmy.world 27 points 11 months ago

That's the biggest slap in the face here. It's not 3 or 4, but 5. What the fuck

[–] oolio@feddit.de 19 points 11 months ago (1 children)

Considering that the r and h are 10, you could still easily do it without calculator, even if the value of pi had plenty of decimals.

[–] queermunist@lemmy.ml 20 points 11 months ago

You guys are really overestimating the students this test was made for lol

[–] COOLSJ@lemmy.world 4 points 11 months ago (1 children)

Bruh i had to do this with 3.141 and without calc too

[–] queermunist@lemmy.ml 13 points 11 months ago* (last edited 11 months ago) (2 children)

Yeah it's not hard, but if the instructor just wants to test if you can follow directions and plug extremely simple numbers into an equation without a calculator then this is fine. I'd almost expect this on a test for some trade skill, like some 1-2 year certification you know?

~it~ ~could~ ~still~ ~=3~ ~tho~

[–] Spzi@lemm.ee 4 points 11 months ago (1 children)

I also guess that was the intention. But then, why choose an example involving Pi? There are so many ways to test simple multiplications. Books per student, students per class, classes per school, something like that. Or calculate a simple 3D shape which is not round.

[–] queermunist@lemmy.ml 2 points 11 months ago

That is probably laziness lol

[–] drcobaltjedi@programming.dev 4 points 11 months ago (1 children)

I remember doing multiplication with decimals using lattice multiplication. It's not hard you just need to know how to move the decimal.

Side note, I remember in precalc in high school the teacher marked a student wrong on a test, for showing his work using lattice, because the teacher didn't understand it. The work was right, he showed his work, teacher just didn't know it so it was wrong. Man I hated that teacher.

[–] queermunist@lemmy.ml 3 points 11 months ago (1 children)

You gotta learn that school isn't about being correct. It's about obeying authority.

[–] drcobaltjedi@programming.dev 2 points 11 months ago

Yeah and i was a defiant little shit in high school. Always going to the exact limits of all the rules we were given. Some of the school security didn't like me, but the teachers did

[–] KISSmyOS@lemmy.world 1 points 9 months ago

Just use 355/113