Example: Converting degrees to radians | Trigonometry

Example: Converting degrees to radians | Trigonometry | Khan Academy

Рет қаралды 930,326

9 жыл бұрын

Worked example to help understand how we convert radians to degrees
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Пікірлер: 79

@marquizzo 7 жыл бұрын

I made some quick conversion formulas after watching, in case anybody finds them helpful: Degrees to radians: deg * π / 180 = rad Radians to degrees: rad * 180 / π = deg

@ellieodonnell8603 7 жыл бұрын

marquizzo that's what we were taught in school!

@Cornflakes691 7 жыл бұрын

Thx!

@nicolefigueiredo6203 7 жыл бұрын

Thanks a lot!

@dayanahernandez2154 6 жыл бұрын

marquizzo I

@daiwikdhar6464 4 жыл бұрын

Mate, I can't tell u how legendary u are!!!! Ur da best!!! ;D

@herkuskaminskas1409 3 жыл бұрын

Quick mechanical tip: to convert any angle from degrees to radians, divide that angle by 180. You will get a fraction, now write pi next to whatever number is in the numerator and boom, there is your angle in pi radians. And if you have 1 in the numerator, change it to pi. For example, if you need to convert 450° degrees to pi radians, divide 450/180, you will get 5/2. Now write pi next to 5 in the numerator, and there is your answer. And if you need to convert 30° to pi radians, do the same, you will get 1/6, and just substitute that 1 with pi. The best thing about this method is that it requires no thinking and is extremely fast. I still recommend taking the time to understand how the conversion works, but once you've done that, this method will save you a lot of time, as it works for any angle, not just the common ones.

@tylaa5606 2 жыл бұрын

Is it the same for negative degrees and numbers like “-115/63”

@ddelfao 9 жыл бұрын

You lost me at Radiuseseseses. I couldn't concentrate anymore. WHY IS YOUR VOICE SO SMOOTH.

@BobBob-uv9fq Жыл бұрын

Made it harder than it is

@rapl1183 9 жыл бұрын

this helped me quite a bit. i could listen to this guy forever

@selim8611 8 жыл бұрын

+Payton Lefler yeah, he's so legit. I have to tolerate my instructor every day then I come home and actually learn something from Sal Khan

@niallove 8 жыл бұрын

I understand the way you teach it than my own teacher, I'm also in trig so I'm pretty sure he expected me to already know it, which I didn't

@Lola2000machina 6 жыл бұрын

Papi Khan: "Radianseseses" me: wot

@nyathaly 4 жыл бұрын

JAIUHSFUGKGAIJRNSGKANGRF PAPI KHAN

@venus1878 7 жыл бұрын

OMG I FINALLY GET IT MY TEACHER HAS BEEN PRESSURING ME NONE STOP BY GIVING ME 5 PAGES A DAY AND I FREAKED OUT BUT NOW I KNOW HOW TO DO IT!! BLESS UUUU

@RaulFelixINC 4 жыл бұрын

Why do text books confuse me even more whenever I try to look up what to but this makes sense?

@isabella_photos_5077 3 жыл бұрын

You’re probably more of a visual learner

@onesandzeroes 10 жыл бұрын

Radiuseseseses - what in god's name is that?

@mikasa__ 3 жыл бұрын

He/She is the son/daughter of Circleseseses

@peeepoi1395 3 жыл бұрын

thank you so much 😭 I learned nothing about our 1 hour zoom class about this and I've learned so much by just watching a 7 min video

@teardropsnwhiskers 6 жыл бұрын

thanks papi khan, you really came thru 🙌👌🙏

@ty7778 2 жыл бұрын

Thank you for this explanation, it helped me greatly with my trig homework.

@Jasmine-ch7bq 4 жыл бұрын

i literally forgot how to do this and i have my final tomorrow your a life saver!!!!

@enormousmaggot 8 жыл бұрын

Back again! This is the one video I really really don't understand for some reason.

@jaayhop 6 жыл бұрын

Great help ! Thanks

@gutujirata1243 3 жыл бұрын

khan i love you so much. you are such talented person the way you teach is simple and clear. thanks a lot

@supposedlyablackhole40year70 5 жыл бұрын

What the, thank you so much I really understand it very well hahahaha for me your teaching is fun and enjoyable thank you very much, now it is my turn to share what you have shared to us thank you very much!

@biologybelievers5831 5 жыл бұрын

Thankyou so much sir it help me a lot.😊

@gulabpolara9429 4 жыл бұрын

This is the best logical method I had ever seen

@wellfedcomedian 4 жыл бұрын

Excellent teacher!

@ezioauditore1826 8 жыл бұрын

loved your voice.............

@Pryce432 4 жыл бұрын

Whats up fellow quarantine classmates

@khatelyn16 3 жыл бұрын

omg thank you so much! you saved me

@user-lm3py8xh3v 4 жыл бұрын

helpful thanks

@RemysWebpageMaker 8 жыл бұрын

"looks like they're both divisible by 9.. so 9 * 5 = 45 soooo.... oh wait, they're both divisible by 45, what am I doing?" hahaha

@donovangarandi1949 6 жыл бұрын

Awesome 💯

@fighton25 10 жыл бұрын

thanks khan academy

@ichigokurasaki5002 7 жыл бұрын

thanks bro

@ivannazarahut3928 Жыл бұрын

I have a question, when simplifying it, how do we figure out what number we divide the numerator and denominator by to get it in a simpler form? like with 150 degrees, how did you know you had to divide them by 30 to get 5pi/6?

@zlcoolboy 9 ай бұрын

Memorization. Otherwise, you need to just brute force it.

@apollosleaf731 5 жыл бұрын

To convert radians to degrees make sure your pi cancels out so radians to degrees is 180/pi and vice versa

@SuperHhhbk 7 жыл бұрын

how do you figure out what the numerator and denominator is divisible by?? For example 150 and 180 is divisible by 30 and 45 and 180 is divisible by 9 and 45. Please help

@1996rayed 7 жыл бұрын

20 pie radians

@meaningful2366 7 жыл бұрын

ikr theres so many numbers but u would have to pick the exact one

@days8973 6 жыл бұрын

stik in calc and let it simplify

@cursorminor 6 жыл бұрын

The largest common factor

@cursorminor 6 жыл бұрын

The largest factor both numbers share is what you divide by

@mmiller6281 5 жыл бұрын

radiusesssssses

@kamyarphysicsschool5065 Жыл бұрын

This video is great. I appreciate having your valuable opinion about my video in the same topic.

@zaidi0to1 4 жыл бұрын

Just multiply the angle in degrees with π/180 For example : 30° × π /180 = π/ 6 Saved your 6 minutes

@prajeshparadox 6 жыл бұрын

Awsome teach . I can now understand

@hi-xy6nr 4 жыл бұрын

*Radiuseseseseesessesse*

@qualitystudios5827 4 жыл бұрын

RADIAN

@brianneb3118 6 жыл бұрын

6:41 hahah

@josefnunez99 Жыл бұрын

what about degrees over 57.3?

@addfistyt6563 4 жыл бұрын

Actually they’re both divisible by 45 what am I doing😂

@aylins1035 4 жыл бұрын

Hi again

@weirdtings9416 Жыл бұрын

Purrrrr

@nocturnalvisionmusic Жыл бұрын

Nice :3 :)

@aadityaarmaan 3 жыл бұрын

The voice is tooo low. Pls increase its amplitude

@iconsworld9 3 жыл бұрын

Well, in reality, you can't really have a negative measurement. Like you can't have a negative mass. That's representable in reality. But is possible only in math, and logic, and mysterious minds. There only exist. This is not a reality problem. Is a imaginary problem.