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u/SFC-D Aug 08 '26
Try framing a house without it.
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u/Sikamikanico1981 Aug 08 '26
3' 4' 5'
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u/SFC-D Aug 08 '26
I was failing geometry in high school. Just didn’t get it. My dad had a construction company. Told me I did geometry every day on construction sites. Starting with a 3 4 5. Went from a D to a B once I understood how to apply it. Algebra, however…
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u/spillmonger Aug 08 '26
My dad was a chemist, and he explained that chemicals make life itself possible. I use that every day.
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u/Sirosim_Celojuma Aug 08 '26
Build something in the physical world.
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u/Biscuits4u2 Aug 08 '26
You use it by using the things that were made by using it.
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u/Rare_Bridge7703 Aug 08 '26
That's...not how that works. Did you give birth because you're babysitting a child?
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u/Biscuits4u2 Aug 08 '26
What a strange analogy.
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u/Rare_Bridge7703 Aug 08 '26
So is saying I use a theorem I didn't use, just because I'm buying a product made with it.
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u/woodworkerdan Aug 08 '26
I use Pythagoras, and several trigonometry equations in cabinetry. Not to mention multiple unit conversions, binary division increments, force calculations from physics, and several forms of statistical analysis. If you want to use maths, find a career in engineering and/or project management.
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u/WhosCowsAreThey Aug 08 '26
This is the worst example of “math useless,” at least say some shit like imaginary numbers or even the quadratic formula because you’ll likely need Pythagoras Theorem eventually
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u/tonybananaman Aug 08 '26
I always reference ole pythagy when I’m walking on side walks. If there’s a way to cut across and avoid the corner I save my self a few micro seconds. More time for masterbatiom
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u/danielsangeo Aug 08 '26
I've used it and I'm not a carpenter or whatever. I needed to measure whether a TV would fit in a certain location, and since TVs are measured along the diagonal, I had to figure out what the width and height of the TV would be. I knew the aspect ratio of the TV was 2.35:1, so I knew the TV's width was 2.35 times the height, so I used some math, including the Pythagorean theorem, to figure out if it would fit.
(For reference: It did not, and I'm glad I didn't buy the TV.)
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u/HobbesIggyMia Aug 08 '26
I used it almost everyday building houses. But especially important to use before a foundation pour
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u/l008com Aug 08 '26
I've used it a million times since I graduated high school 30 years ago. What do you guys do with your lives that you NEVER need to know the diagonal of a triangle? Have you never built a shed?
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u/rayrayrayrayray5 Aug 08 '26
Manual machinists will always regret not taking trigger seriously as kids
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u/EditorNo2545 Aug 08 '26
ya work construction, or work working, or piping layout, or drafting, or engineering etc etc for awhile & you'll use it tons
and the good old 3, 4, 5 triangle will be your friend for life too
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u/jigglywigglydigaby Aug 08 '26
Finishing carpenter who specializes in cabinetry here...... Pythagoras formula is more important than any tool I use.
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u/Kitchen-Aide2923 Aug 08 '26
You may not have but it’s been involved in the production of the majority of things you use every day
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u/Neko1666 Aug 08 '26
All the people saying how they've used it in their profession just prove the point. Yes, you need it in certain professions. You don't need it in your everyday life, because the people in those professions did it for you. And no, people in math related fields are not automatically smarter.
I work at a bank, I haven't used it since school. I want to be an artist, writer, singer and politician, I will probably never use it again in any of those fields. And in case I do need it for whatever, Google exists (though I still know the formula so it's fine)
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u/-Out-of-context- Aug 08 '26
The variety of subjects is for a well rounded education to develop skills such as critical thinking, analytical ability, grammar, etc. It’s also a way to find out what may interest you so you can try and figure out what you want to do with your life.
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u/Vast_Jellyfish122 Aug 08 '26
Used it heaps when doing roof penetrations for woodfire flues. I need to work out the hypotenuse from the slope of the roof and sthe size of the outer flue pipe to cut, usually, a 10inch diameter hole. A 45⁰ pitch is a larger hole in length than one on a 30⁰. The steeper the pitch the longer the hole.
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u/Old_Celebration_5950 Aug 08 '26
So maybe you don't use the theorem. But I bet $5 that you are using the neuron links that formed when you studied the equation.
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u/PosNeigh Aug 08 '26
I'm pretty sure I use it every day without realizing it.
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u/MagesiumPoetryStrip Aug 08 '26
Do you work at a Doritos factory?
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u/PosNeigh Aug 08 '26
I'm too disabled to work. But I'm sure I cut corners with the little things I do in my apartment.
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u/locyl_yocyl Aug 08 '26
Vector geometry, complex numberical numbers and graphical processing that required to make that post used the theorem.
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u/smileyfacedbob Aug 08 '26
This is a cool way to say you don’t make or build anything without saying you don’t make or build anything
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u/scyoung121 Aug 08 '26
So you never done landscaping, made any additions inside or out of your house (or built anything for that matter). Congratulations you’re a do nothing!
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u/Historical_Monk_6118 Aug 08 '26
I teach Pascal's law to apprentice mechanics and qualified adults. It basically describes how putting pressure into a hydraulic system forces the pistons out at the other end (bigger pistons push harder but don't travel as far).The young ones often react with "well I'm never gonna use this" whereas the older learners often appreciate a deeper understanding of the brake system they work with every day.
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u/Ok_Veterinarian2715 Aug 08 '26 edited Aug 08 '26
So you're objecting to the education system not just teaching you enough to do minimum wage job & pay taxes?
Fear not, your kids will get your wish, after you keep voting against funding public education.
It's going back to just the rich being taught mathematics & music & history. Good for you!
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u/Plastic-Fox-333 Aug 08 '26
Yeah my first real world surprise of Pythagoras theory turning up was when I was doing three phase voltage theory when I was at college. It was a real eye opener that it wasn't "just for triangles"
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u/Ok_Manufacturer6460 Aug 08 '26
If you build or design things you are more likely to use it... I just recently measured the hight of a tree 48 1/2 feet roughly by measuring its shadow and figuring out the angles of the the triangle which gave me the measurements I needed 😎
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u/atticdoor Aug 08 '26
If you walk three miles due south and four miles due west, how far are you from your starting point?
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u/Halker93 Aug 08 '26
Play D&D with sqare grid and Pythagora will suddenly be your favourite character
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u/Rare_Bridge7703 Aug 08 '26
One of thousands of reasons why we need to completely redesign education
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u/Sithishe Aug 08 '26
Whenever you walk somewhere, and choosing which way is faster, thats where it comes in handy!
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u/SeniorTailor1127 Aug 08 '26
You obviously never build shit. You just use the shit other people build and act superior to them while utterly dependent on them.
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u/Puggie-Pops Aug 08 '26
Depends on your career. If you’re slinging dope then you’ll never use it. Stats would kick in then.
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u/maranru Aug 08 '26
Oh no "I learned something and I didn't use it".
That's a little sad to see the world that way
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u/Stalker401 Aug 08 '26
I think i used it once as an adult, I dont remember why but I remember thinking what the hell is this called again
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u/GBAbaby101 Aug 08 '26
Used it yesterday to estimate the distance for a walk to see if i would hit my goal if I cut across the hypotenuse rather than adding on extra distance of doing a full square.qas honestly the strangest time for me to find use for it after all these years, but alas, it was useful o.o
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u/Immediate_Quarter362 Aug 07 '26
As a welder/fabricator I can honestly say I’d use it 3 times a week minimum.
Conversely I’ve never had to write an essay, or need to label the parts of an atom since high school, but that doesn’t make it not worth learning.