Lines and Angles Class 9
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- Опубліковано 12 лип 2024
- Lines and Angles Class 9 : Live Class Tomorrow (Thursday) at 8 PM!
Sorry, we had to postpone today's class to tomorrow due to Cyclone Amphan which has hit Kolkata. There is power cut due to the severe storm!
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We've known each other for so long
Your heart's been aching but you're too shy to say it
Inside we both know what's been going on
We know the game and we're gonna play it
I just wanna tell you how I'm feeling
Gotta make you understand
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
Never gonna give you up
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Never gonna run around and desert you
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unexpected rickroll
dude why rickroll in maths class ;-;
@@nishad_14 why not?
My doubts are completely cleared after watching your class. I am from Kerala. it is our luck to have such classes. Thank u so much sir
You are most welcome
malayali
#malayali 🥇🌝😂
I am from Maharashtra ❤️
Aha najnum indu
i recently found this channel for class 9 sci , your explanation is amazing , with all the examples your making it easy sir . keep it up
Thanks and welcome
Answer is 30 for last question sir
As incident ray and reflected ray are equal let us take both them as x then 120+2x=180 : 2x=60:x=30 there fore incident ray and reflected ray are 30 degrees respectively
Only legends like comments after 6 months.. BTW I love your videos and our teacher also teaches us with your videos..
Thanks for liking
Sir last question answer is👇
120°+2x=180°
2x=180°-120°
2x=60°
x=60°÷2
Ans.(B)-30°
good work
answer is 30 as rqa and pqa is both the same and if we add 30+30 it is 60 and on adding 60 with 120 is 180 degree
____FIRST COMMENT____
ANS IS.... B
.WITCH IS 30° ...ANGELE PQA=PQB=30°.. TQ sir
STUNNING VIDEO FOR CLASS 9 STUDENTS......
We always compete for the first comment, don't we? ;)
Yeh my abroad friend Albert..........
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IT IS NOT FOR THE FIRST ONE BUT RIGHT ANSWER
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Sir, your teaching is awesome.👍🏻👍🏻
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He looks like foreigner and his english made that look true🤓
Answer is 30 degrees because angle PQA + PQR + BQR =180 degrees. PQR = 120 degrees. Let RQB and PQA be x. Now we get x+x+120=180. 2x+120=180 2x = 180 - 120 2x = 60 x = 30 degrees.
*Second Comment*
The Answer is 30° (Option B)
Thank you for the Great live class!
@Albert Einstein, you always reply really fast :) Excellent! Right answer!
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i have accepted that you are my real teacher !!
you are my no 1 teacher !!!
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@@AarushGam3Z yes 9th class in afterlife
Hello sir, actually i'm not from your academy but i find your way of teaching very efficient to me. I recently found this video when i wanted a tutorial for grade 9 lines and angles. Thanks a lot for teaching.
Most welcome
Sir Before I thought that you are in western countries like USA,California etc. because you are explaining in english but when you said that I live in Kolkata,India I was Shocked And also I saw your hindi channel I was crystal clear that you are in India
I was in the USA for 9 years
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MADE IN INDIA.SULUTE FOR INDIA
East or west Manocha is the best If all teachers in India are like Manocha sir the literacy rate of r country will be 100 percent!!!!
Legends are those who r watching this before one day of annual exams
Sir when you teach us perfect we all understands every thing what where u say
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Thankyou soo much for explaining in detail, I appreciate this soo much. I'm really weak when it comes to mathematics, the part where you explain briefly from the start really helps recalling everything.
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Thank you sir for your mind blowing explanation,it helped me a lot
Glad to hear that
Home work question
B:30
The bisector (keep it as QC) of the angle PQR is perpendicular to AB
If we divide angle PQR into two equal angles we get each angle as 60 .
Then find the angle PQA by
AQC=PQC+PQA
90=60+PQA
PQA=90-60
90-60=30
PQA =30
Let angle PQA be x
x in LHS made by the reflector to incident ray=x in RHS made by the reflector to reflected ray
Total value of both the sides=2x
2x+120=180
or, 2x=180-120
or, 2x=60
or, x=60/2
or, x=30
Therefore, angle PQA= 30°
Sol: AnglePQA=AngleRQB By Taking AnglePQA&AngleRQB=X X+120+X=180 2X+120=180 2X=60 X=30
SIR THANK YOU SO MUCH FOR PROVIDING THIS MUCH GOOD QUALITY CONTENT 💖💖
DAY AFTER TOMORROW IS MY EXAM 🙏
Most welcome 😊
Late all the best 👍
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Sir best I get this chapter very clearly in one day only
U teach amazingly 🥳
HW Question:-
Q) Sol: 120 + 2x = 180
2x = 180-120
2x = 60°
x = 30° therefore angle PQA = RQB ...... Both angles are 30 °
Very nice explaination
My son aced his exam thanks to you!!
Anyone preparing for 9th final exam?!
yep me tommorow is my math exam
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Me March 5th I've my Math exam. I'm a great fan of sir May God bless him with everything he wants with lots of love from Karnataka
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I have exam in 1hr 30min and its so clear for me sir thank you very much sir 🤗🤗
U r gr8
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Hello sir. I am in 9th standard. Thank you so much for this class. I had forgotten what I had studied in my previous classes but because of this revise, I am able to remember it very well. And because of this easy and beautiful explanation I was able to do the last question's answer on my own! And the answer is 30°.
When Sandeep Manocha Sir teaches I feel it's perfect and I don't need to read book
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Sir it's an mind blowing explanation
Thanks a ton
Shan is your live
It's a mind blowing explanation not an
Sir your teaching skills is awesome
This is very helped in my exam. 👌
Thank you so much sir. 🙏🏻
Most welcome 😊
Very nice explaination sir. Thank you.
Please give the timing of such great live classes.
I am a new subscriber for I love your teaching and explanation.
Thank you so much Sir! May God bless you! 🌿❤
Sir you have discussed all the types of angles but you have not discussed the angles that I was looking for...,..that is co interior,corresponding
Please pay attention on class, he is discussing it in 17:47
My math exam is next week, ur explanation is awesome, thanks a lot!
All the best for your exam!!
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Sir,Can you please post videos on classes and show how to solve the ncert textbook exercises of lines and angles for class 9?
Yes sir please help 🙏
Really god gifted me this channel what a brief and clear explanation . Sir your pronouncetion is completely super .
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Maths is like magic
M (MATHS)=M(MAGIC)
M=M
:) LOL
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I'm from Bangalore. really thank full 🙇♀️to u sir. Because I forgot everything because of this corona holidays know I recalled.and no more doubts .... And hw ans is 30°
120°+x+x=180°
120°+2x=180°
2x=180°-120°
2x=60°
x=60°/2
=30°+120°+30°
PQA=30°.
Thank you sir.......
i am from mandya
Hey bro
I'm a bit confused
How did you assume that angle PQA and angle BQR are equal?
Good evening sir, at 15:52 in this vedio the question is
What type of angle do the hand of a clock form at 8 PM.
My teacher told that we should take from 0 degrees(12 o clock) and as the arm(minute hand) moves in clock wise direction it will be 240 degrees (reflex angle).But you have taken the angle in anti clock wise direction and said that the angle is obtuse angle(more than 90degrees and less than 180 degrees).Is it obtuse or reflex angle?
Obtuse angle
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On Tuesday I have summative assessment 1 so I m here to see u r video 📹 😀
Ur name pls
@@dasarigangadevi1980 but why ? What will u do
tomorrow is my exam sir maths.. u hav teached me soo well.. and tht too ur soo kind sir... with all those diagrams and explanation i could easily write my exam tomorrow ... thank u sir for ur effort even during the storm.....
pls start an app sir ...
We have a web app: www.manochaacademy.com
Sure sir
13:40 sir the complete angle should be tilted so all might guess easy
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there are many channels on youtube which r my fav. bt the only study channel which is the best i.e my fav. i really swear thats ur channel sir
We need a teacher like you we all are grateful to you thank you very much sir.very nice explanation.
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TQ Sir
Sir Tq for this video it is too helpful for my exam I am not present when my sirs explanation
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Sir know Hindi very well and English so I prefferer mostly your classes
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Pehli baar zindagi mein kisi ki pdai hui math samajh me aa rhe h mujhe.bhut hi clearly samjhaya.online class kb le sakte h
Sir your multi talented because your balancing physics,chemistry,maths subjects of class 10,9,8 super .
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Thanku soo much sir 🙏🙏
You explain soo well.....thanks a lot☺️ And the ans is 30 °
Hi
Sri you are teaching Very clearly 🤗 and l am from Bengaluru 🗺️
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I am watching from ( tamil nadu ) your amazing and outstanding in your explanation
Thanks you have soluted my doubts towards the angles
sir you are damn good teacher
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It's mind blowing explanation
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Thanks a lot because this chapter has been haunting me and your classes are very easy to understand 😊 and about the home work question I've got option (c) 60°
Glad to know it helped
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Sir you have clear my all doubt of this chapter
Sir happy to have such super class i understood Every concept sir thank u very much And i am ur great fan from kerela 😍😍👍🏻👍🏻👍🏻
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Sir.....you are very well teaching....i am understanding every concept...thank u sir
Super video and excellent explanation
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Sir your teaching skills are excellent 😍
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tomorrow is my exam sir md now m watching all ur videos ur explanation was clear nd nice.These videos gonna help me for tomorrows exam sir. Thankyou so much sir❤
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Hello sir my name is Mithunraaghav and currently studying 9th so can u plz make a video on heron's formula i really love ur videos it really helps me a lot so plz keep up the good work and hope u are fine
sir ur explanation is very helpful sir and it is very easy to understand tq sir 🙂
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Solution = 120 degree + x + x=180 degree
Then, 120 degree + 2x =180
2x = 180-120
2x= 60
x = 60/2=30
Therefore the answer is 30 degree
Thanks sir! Great session today!!!
You're correct
Ik albert
Excellent! Right answer :)
Great to hear you liked the session! Thanks :)
@@ManochaAcademy Thanks sir!!
Y I have to go to the gym and then I y y I have to go to the gym now I have a good day today and tomorrow is a good time to get the chance to
Children don't like studying as it tends to become boring, if only everyone watched your videos, studying would no longer be boring.
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i am very proud that there are talented teachers in india
The answer of last question was 60 degree as it was linear pair
X+120=180
X=180-120
X=60
X+120+x =180
2x +120=180
2x = 180-120
2x=60
X+120+x =180
2x +120=180
2x=180-120
2x = 60
X=60/2
X=30
Hi Mr Manocha, I have been watching your videos since yesterday. Just wondering if you also have the videos or course work for Year 7 in the UK.
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Sir, I am soma vashista. The question which you gave the answer is 30 degrees. sir enjoyed your class. I love your class it's awesome.
Excellent!! Right answer :) Great to hear you enjoyed the class!
Your way of learning is very good
Thanks a lot
Sir first of all hope it is all fine in there ...
Answer :-
Sir if AQB is 180 degree then we can do 180 degree - 120 degree so 60 degree is the sum total of both angles...
As there are 2 angles then the answer we got should be divided by 2 ...
So 60/2 which is 30 degree is the correct answer..
And thankyou very much sir
In 50 mins you made 200 hour classes easy
Sir your class is great ❤
Option B.. 30
Your explanation helped me a lot for my exams and fearness is gon away from me Thanks alot sir
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Thanks sir I was not from this academy I had many problems with lines and angles thanks a lot for teaching
It helped me alot thanks so much
Thank you sir for a great learning session
Always welcome
All my doubts are conplets cleared after watching your class. I am from Bangloor. And thank u😀😀😆😉
Most welcome
I watched this late but it was very helpful
I think the answer for the question is 30 I found it without calculating but I have a problem in that how do I do sums step by step it is confusing for me but I
can find the answer easily without doing it step by step
good explation sir
Thanks for liking
sir thank u for this video
it is very helpful
Well I have a doubt in linear pair angles
U told that if add two angles it will be 180° what if , it doesn't
Sir it was helpful for me thx for teaching tomorrow is my exam so only was watching your video thx for teaching sir keep going sir we will support you 🙏🙏
It's my pleasure
Answer for the last question is ...
B) 30°
SOLUTION :
AB is a line (measures 180°)
AngleAQP + AnglePQR + AngleRQB = 180Degrees
AngAQP + 120 + AngleRQB = 180°
(( PQA=RQB as
angle of incidence = angle of reflection ))
Therefore , PQA+120+RQB=180
((As PQA=RQB we can write
2 PQA ))
~ PQA + PQA + 120 = 180
~ 2 PQA + 120 = 180
~ 2 PQA = (180-120) 60°
~ PQA = (60÷2) 30
Answer =
PQA = RQB = 30°
Very nicely done
Sir can you make a video
How to make maths easier
I am very poor in math
So sad poor..in maths..
Take ur maths note and text book...throw it away its easier...👍
Thank me later
You shut up
For me maths is poor
If you want to throw book, you throw
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Jst kidding bro ...watch youtube classes u will understand👍
I was also kidding
Ayin..😏
Last question's(find angle PQA) answer is :angle PQA=30 degree.
sir is it true answer?
I have a doubt sir, how do you prove nearly any question in lines and angles?
The answer is 30 degree (b). It was a great class sir, thank u😊
You're Correct
Right answer :) Thanks!!
@@ManochaAcademy Sir please make a video on beginners for 10 std importantly in this situation😦😯
MAKE LIVE C;LASS OF TRIANGLES