Sum of the exterior angles of convex polygon | Geometry | Khan Academy

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Khan Academy

Khan Academy

Күн бұрын

Пікірлер: 42
@HigherPlanes
@HigherPlanes 13 жыл бұрын
I wish you could have been my teacher in middle school. You're awesome Sal
@HigherPlanes
@HigherPlanes 3 жыл бұрын
@Mayank goyal lol 9 is a lot in internet years
@Jacky2Jenna
@Jacky2Jenna 2 ай бұрын
dang 12 yrs
@HigherPlanes
@HigherPlanes 2 ай бұрын
​@@Jacky2Jennaeverything unfolds in the now.. the future and past don't exist
@aerovaler902
@aerovaler902 Ай бұрын
​@@HigherPlanesI don't get it why u still replying?
@HigherPlanes
@HigherPlanes Ай бұрын
@@aerovaler902 Are you supposed to get it?
@toplobster1040
@toplobster1040 4 жыл бұрын
You're great at explaining things! So easy to understand. Thanks!
@WSCOMPUTER
@WSCOMPUTER 13 жыл бұрын
Sal, I came up with a very simple solution: 5*360-3*180-5*180=360 5*360 --- all five full angels 3*180 --- (n-2)*180 - all 5 internal angles 5*180 --- 5 adjacent external angles. So a general rule would be: n*360-(n-2)*180-n*180=360 Q.E.D. If you find useful you can make a video on it :) KHANACADEMY - best school on Earth.
@Alvinantobinoy
@Alvinantobinoy Жыл бұрын
Nobody asked
@unchained_bootaga403
@unchained_bootaga403 Жыл бұрын
u post this 11 years ago 💀 I would like to know what have u become
@HattieMcDanielonaMoon
@HattieMcDanielonaMoon 6 жыл бұрын
Why is math so hard?!
@charleschen1979
@charleschen1979 4 жыл бұрын
Bernard's Channel STUDY
@mantosh56
@mantosh56 3 жыл бұрын
@@charleschen1979 HOW I STUDY HELPPPP :(
@charleschen1979
@charleschen1979 3 жыл бұрын
@@mantosh56 if you are struggling in math, I recommend writing what you struggle on down and research them one by one.
@alisonbrown1522
@alisonbrown1522 4 жыл бұрын
anyone here cause of the coronavirus or is it just my school
@xtramaze-musicmaster9165
@xtramaze-musicmaster9165 4 жыл бұрын
A sympathetic sharer of your burden right here.
@ewlllmeaatt1971
@ewlllmeaatt1971 3 жыл бұрын
yep suffering
@ninjabui8
@ninjabui8 13 жыл бұрын
4:13 PACMAN!
@anasophia7312
@anasophia7312 Жыл бұрын
This was so helpful! Thank you! :D
@justinmaduako4315
@justinmaduako4315 Жыл бұрын
((Man, I just love watching those Khan Academy videos (➕➖✖➗👨‍🔬👩‍🔬📚🏫); Sincerely, Justin Maduako)).
@ashesofthedead
@ashesofthedead 4 жыл бұрын
0:00 omg i thought my screen cracked
@thisshouldsay2K
@thisshouldsay2K 13 жыл бұрын
@smicha7 It's easier for me to just remember that a convex polygon's outer angles will total 360°.
@wania7179
@wania7179 4 жыл бұрын
Thank you so much! This cleared my concept :) Btw anyone got this assignment from online school? :' (I got a test which includes this T_T)
@xtramaze-musicmaster9165
@xtramaze-musicmaster9165 4 жыл бұрын
Me.
@akionyx310
@akionyx310 2 жыл бұрын
Yeah basically
@nirmalakale479
@nirmalakale479 4 жыл бұрын
Sir you videos are nice
@Basic719
@Basic719 Жыл бұрын
So it's not applicable for concave polygon ??
@brennan2185
@brennan2185 11 жыл бұрын
I am having the same problem I have done dozens and dozens of problems and the answers seem to be rather arbitrary. It doesn't stick to the formula(s) that is provided.
@jaleahmad3248
@jaleahmad3248 3 жыл бұрын
May I know the software and hardware that you use to draw the diagrams in your video?
@karmaakabane2165
@karmaakabane2165 3 жыл бұрын
So this guys just knows everything huh
@fightforfitness2256
@fightforfitness2256 6 жыл бұрын
You helped me a lot, thanksssssssssssssssss................
@WSCOMPUTER
@WSCOMPUTER 13 жыл бұрын
@thisshouldsay2K You are right, but I meant a proof, not something to remember.
@s.t.alshalawi5998
@s.t.alshalawi5998 6 жыл бұрын
THANKS
@kirotorii3881
@kirotorii3881 5 жыл бұрын
loVE UR USERNAME
@thisshouldsay2K
@thisshouldsay2K 13 жыл бұрын
@smicha7 Ah. Well yeah, then that will work.
@ajitkumar-mu8bp
@ajitkumar-mu8bp 3 жыл бұрын
it has three lines coming out from one point
@JohnnyLion66
@JohnnyLion66 12 жыл бұрын
But Sal, NONE of the polygon in the "Angles of a Polygon" exercise don't seem to be concave. And some of the polygons used in the exerciise don't look anything like a 360 degree polygon, but the answer to the problem on just about every other problem is 360 degrees. So, how do I know when to apply this "elegant" way?
@charleschen1979
@charleschen1979 4 жыл бұрын
Peaceful Pigeon I replied to you after 1/3 pi year
@smartypants3902
@smartypants3902 3 жыл бұрын
Only 36 comments
@F3llqs
@F3llqs 7 ай бұрын
Skibidi toilet
@hyolee2334
@hyolee2334 3 жыл бұрын
I don’t understand anything
@attorneyonwheels
@attorneyonwheels 7 жыл бұрын
200th liker!
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