Example: Converting degrees to radians | Trigonometry | Khan Academy
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- Опубліковано 8 вер 2024
- Worked example to help understand how we convert radians to degrees
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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
marquizzo that's what we were taught in school!
Thx!
Thanks a lot!
marquizzo I
Mate, I can't tell u how legendary u are!!!! Ur da best!!! ;D
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.
Is it the same for negative degrees and numbers like “-115/63”
You lost me at Radiuseseseses. I couldn't concentrate anymore. WHY IS YOUR VOICE SO SMOOTH.
Made it harder than it is
this helped me quite a bit. i could listen to this guy forever
+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
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
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
Why do text books confuse me even more whenever I try to look up what to but this makes sense?
You’re probably more of a visual learner
Papi Khan: "Radianseseses"
me: wot
JAIUHSFUGKGAIJRNSGKANGRF PAPI KHAN
Radiuseseseses - what in god's name is that?
He/She is the son/daughter of Circleseseses
thanks papi khan, you really came thru 🙌👌🙏
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
i literally forgot how to do this and i have my final tomorrow your a life saver!!!!
Back again! This is the one video I really really don't understand for some reason.
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?
Memorization. Otherwise, you need to just brute force it.
khan i love you so much. you are such talented person
the way you teach is simple and clear. thanks a lot
This is the best logical method I had ever seen
Thank you for this explanation, it helped me greatly with my trig homework.
loved your voice.............
*Radiuseseseseesessesse*
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
20 pie radians
ikr theres so many numbers but u would have to pick the exact one
stik in calc and let it simplify
The largest common factor
The largest factor both numbers share is what you divide by
Whats up fellow quarantine classmates
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!
omg thank you so much! you saved me
Thankyou so much sir it help me a lot.😊
radiusesssssses
"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
Excellent teacher!
Great help ! Thanks
helpful thanks
Just multiply the angle in degrees with π/180
For example :
30° × π /180 = π/ 6
Saved your 6 minutes
thanks khan academy
To convert radians to degrees make sure your pi cancels out so radians to degrees is 180/pi and vice versa
Awesome 💯
thanks bro
RADIAN
what about degrees over 57.3?
This video is great. I appreciate having your valuable opinion about my video in the same topic.
Purrrrr
Nice :3 :)
Awsome teach . I can now understand
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.
The voice is tooo low. Pls increase its amplitude
Hi again
Why not just say 1 radian = 57.3 degrees. Isn't that simpler?
Actually they’re both divisible by 45 what am I doing😂
Ok so pi radians equal 12 chicken eggs?
worse is different from worst
6:41 hahah
This made my brain fart.
+Josh Tep it made my brain shart.
This one seems unnecessarily complicated
I swear this is one of those creepypasta readers. I can’t recognize which one though.
rrrrrrrrruuuuuuuradianssss
ok low key he sounds a lot like corpse husband is that just me
Please replace my professor