I haven't done one of these in a couple years so I paused it and tried, I did it by adding up 31+64+50 = 145, then subtracted 145 from 180 = 35. I totally forgot the method of supplementary angles, that is helpful.
Your videos has helped me a lot. My math teacher uses your vids to help us in math problems, so I thank a lot to my teacher for showing these videos. Hope you doing well and keep on making math videos. :)
Yeah this is a round-about way to solve the problem, and Sal probably knew that. His purpose is to get people to understand math, not just to solve the problem, and doing this in multiple steps lets him explain more than if he had done it in one step.
yeah, but that's a less intuitive method. it's just simplifying the process but you dont understand what youre doing. in the future, you definitely wont have all 3 angles, so deducting measures with that method would be impossible.
A more intuitive solution for Z is made evident (at least for me) when you realize that the two triangles shown form a larger triangle. For z: 180 - 64 - 31 = 85 85-50 = 35* Alternative solution for y: 180 - z - 31 = y (since you know z from above)
As soon as I saw the problem, I managed to solve it just by my mind, inside 10 seconds... !! Sal explained it for too long and also the method is twisted ! But i won't give a dislike to this video or any of Khanacademy videos !
As others have pointed out this is a VERY roundabout way of solving this problem. Just take the big triangle, add the given angles, and subtract them from 180
@UMULAStudios I just happened to have a stopwatch on my table so i timed it. And this problem is super easy: if you ignore the dividing line you'll see a big triangle with 64° and 31° known angles. The remaining angle is 180° - (64°+31°) = 85° and this corner is divided into 50° and (85 - 50) = 35° here you go. No need for complex calculus here at all.
I see where you told us about two triangles, but not where you told us about the greater triangle. It looks like the assumption is made that the bottom of the greater triangle is actually a straight angle. IOW I see a tall skinny nearly isosceles triangle and a short squat nearly isosceles triangle glued together at equal length segments with some angle measures given and some excluded. I'm thinking the supplementary angle assumption is premature. Am I wrong about this?
@UMULAStudios i did it in under 30 sec in my head. once u know how to solve it there are ways of doing it. im also good at mental math doing it in my head
the sum of all interior angles of any triangle is equal to 180°. PS:- I know u asked this question 6 years ago , I replied bcoz it might be helpful for other students .
I haven't done one of these in a couple years so I paused it and tried, I did it by adding up 31+64+50 = 145, then subtracted 145 from 180 = 35. I totally forgot the method of supplementary angles, that is helpful.
Your videos has helped me a lot. My math teacher uses your vids to help us in math problems, so I thank a lot to my teacher for showing these videos. Hope you doing well and keep on making math videos. :)
This was really helpful. I'm about to do a test on it and I think I'm ready
did you do good on the test?
@@rushvillareal3604 no
Lol
@@rushvillareal3604 hes probably dead bro
@@sygneg7348 💀💀
You have a nice heart and your good at math like how salmon khan is good at acting May God bless you
Yeah this is a round-about way to solve the problem, and Sal probably knew that. His purpose is to get people to understand math, not just to solve the problem, and doing this in multiple steps lets him explain more than if he had done it in one step.
Khan Academy is the best!!
Or you could simply do: 180 - 64 - 31 - 50 = 35! Would be much quicker, because you know all angles in a triangle add up to 180.
exactly my thoughts
Yeah, that's what I did.
yeah, but that's a less intuitive method. it's just simplifying the process but you dont understand what youre doing. in the future, you definitely wont have all 3 angles, so deducting measures with that method would be impossible.
A more intuitive solution for Z is made evident (at least for me) when you realize that the two triangles shown form a larger triangle.
For z:
180 - 64 - 31 = 85
85-50 = 35*
Alternative solution for y:
180 - z - 31 = y (since you know z from above)
As soon as I saw the problem, I managed to solve it just by my mind, inside 10 seconds... !! Sal explained it for too long and also the method is twisted ! But i won't give a dislike to this video or any of Khanacademy videos !
the video is very very helpful!
I didn't understand angle sums before but when i saw ur video it helped me and i got 100% in my test. Many thanks!
what I did at the start when i didnt knew the solution was:
180-(50+64+31) = z
aaaaand I got 35
you know sometimes you gotta forget the hard way and think with a straight mind
As others have pointed out this is a VERY roundabout way of solving this problem. Just take the big triangle, add the given angles, and subtract them from 180
@UMULAStudios
I just happened to have a stopwatch on my table so i timed it.
And this problem is super easy:
if you ignore the dividing line you'll see a big triangle with 64° and 31° known angles.
The remaining angle is 180° - (64°+31°) = 85° and this corner is divided into 50° and (85 - 50) = 35° here you go.
No need for complex calculus here at all.
u could let x be the angle u want to know,
so that (50 + x) + 64 + 31 = 180
Similarity chapter problem involving area of model or map with full details converting to km to cm or km square to km
Thank you so much
Haha like everyone else is saying, this could have been done in under a minute :P, very well explained though!
My teacher posts every lesson on her youtube channel but I didnt understand it so i came here.
What's her TH-cam name if you don't mind me asking? I might have come across it before if I recognize the name :)
I invented this method in 1996 in West Palm Beach Florida. Wellington landings middle school.
no u didnt it was made by euclid
I spent 45 sec to solve it in my head.
No body cares about you being smart
My little brother has more subs than you
@@TheMrs7 who is that
nerd
I see where you told us about two triangles, but not where you told us about the greater triangle. It looks like the assumption is made that the bottom of the greater triangle is actually a straight angle. IOW I see a tall skinny nearly isosceles triangle and a short squat nearly isosceles triangle glued together at equal length segments with some angle measures given and some excluded. I'm thinking the supplementary angle assumption is premature. Am I wrong about this?
what program are you using to do that?
i know its kids doodle in android or tab
I think its adobe photoshop
@UMULAStudios i did it in under 30 sec in my head. once u know how to solve it there are ways of doing it. im also good at mental math doing it in my head
what abrilliant thinking
nice
where did you get the 180 from?
+libni antelo when add up all the angles in a triangle you get 180 degrees
the sum of all interior angles of any triangle is equal to 180°.
PS:- I know u asked this question 6 years ago , I replied bcoz it might be helpful for other students .
Ah, the scalene triangle!
im in grade 6 and did it in 40 seconds.
so ur a ninth grader now
now almost out of high school
Character development.
make a commuent
Почему нет субтитров на русском?!😢😭
There is no subtitles in Russian?!😢😭( Translation)
@@postmalone2959 thanks
@@postmalone2959 there are just gor or settings then captions and select your language
@@nishachandra691 yeah u right
black
Hy
All that calculation is unnecessary.
:)
waste vedio ha ha ha waste
Siddesh Hb Siddu shut up
Stop throwing negativity a$$ hole💩
Ok, but can you spell correctly? You damaged my brain just by reading this. Wait until you pass first grade, then I'll speak.
thank you so much