Lines and Angles Class 9 Maths in One Shot (Solving Important Questions/MCQs) | BYJU'S Class 9
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- Опубліковано 21 лип 2024
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Join this Mission Mid-Terms series to revise Lines and Angles Class 9 Maths topics in detail. Lines and Angles is Chapter 5 in your NCERT Class 9 Maths syllabus. In this online class, your BYJU’S educator, Khushbu Ma’am, solves important questions and MCQs on Lines and Angles.
Some of the topics covered in this class are as follows:
- Parallel lines and a transversal
- Angle sum property of a triangle
If you are preparing for the upcoming mid-terms or the boards, this session is sure to help you be well-prepared for the exam.
We at BYJU'S always strive to give you the best. Add this video to your study plans to amplify your chances of cracking the upcoming exams!
Looking for similar video lessons? We have a host of class 9 Maths video lessons including revisions and doubt-clearing sessions on our BYJU’S - Class 9 & 10 channel. Subscribe to our BYJU’S - Class 9 & 10 channel now to get access to all the video lessons.
00:00 Lines and Angles Class 9 Maths in One Shot
2:40 ANTHE - Aakash National Talent Hunt Exam
5:33 Mission Mid-Terms
8:02 Recall
9:14 Types of Angles
11:21 Complementary angle
11:44 Supplementary angle
11:56 Adjacent Angles
13:52 Linear Pair
18:56 Classification
21:16 Linear Pair
21:56 What if we Extend the Ray?
24:05 Vertically Opposite Angles
25:42 Theorem
29:16 1st Question
31:50 2nd Question
33:49 Did you ever observed these closely?
34:18 Learning about Transversal Lines
35:51 Let’s have a look
37:12 Corresponding angles
37:49 Corresponding angles Axiom
40:09 3rd Question
42:19 4th Question
43:03 5th Question
45:13 Alternate angles
45:46 Alternate Interior Angles Theorem
46:28 Converse of Alternate Interior Angles Theorem
47:03 6th Question
48:32 7th Question
51:59 Co-interior Angles
52:38 Co-interior Theorem
53:36 Converse of Co-Interior Theorem
54:05 8th Question
57:04 Theorem
57:26 9th Question
1:00:03 Let’s sum up the angles of a Triangle
1:00:24 What about Exterior Angles?
1:01:06 Summary
1:01:44 Homework Question
1:01:54 BYJU'S Mini Learning program
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I did not understand
Homework : Answer : 30
oooooooooooooooooooooh
ghjm,kjhgvbnm
@@sagar_gamer150
7:28 session starts
🫡
Thanks bro
Thanks ma'am... you prepared me for my today's test on lines and angles ❤❤❤
Can you do a revision session of This chapter in a more detailed and understanding way? ❤
Wonderful explanation!!
Really loved it❤️
Thank you so much ma'am..............as I have my math test tomorrow.......I'll do well...thanks again ❤
Hello Rishitha, Hope that the session was helpful to you, All the best👍🏻
helped a lot!!!
As in the figure we have to find the value of x
2x+3x+x=180(linear pair)
6x=180
x=180/6= 30
So the value of x is 30 degree
Very Good Mamata, Keep Watching for such more amazing sessions😊
mamata it should be adjacent angle because linear pair has only two angles but this question has three angles
plz rewatch the video
Or you can say them as supplementary angles
Mam thank you so much for explaining mam😊 it helped me a lot but i didn't understood last question
your teaching was amazing mam.🤩🤩
Best explanation ever !!!
Thank you khusbhu mam for understanding me this chapter
😏😏
Thanks ma'am for such a great explaination
Is tomorrow your exam?
yes 😂
@@zomacchy16 All the best
@@rishibala8920 Thank Youu! Appreciate it!
Yes
@@sudha9179 All the best
Mam this is a wonderful session 😊😊😊😊 thks for spending time for our students again thank you its nice 😊😊😊😊😊😊😊😊
Thank you maam ❤
ty for a great session
Hey Muhaz, Stay tuned to our Channel for further updates on upcoming Amazing Sessions 👍
Does the steps to proof should be in a specific order??
I understand very well
U r such beautiful teacher and such a beautiful teaching 🥰😍
Thank you for your teaching style 😊😊😊😊😊😊😊😊😊😊
GOOD EVENING MAM
SORRY MAM
I DIDN'T ATTEND THE CLASS BECAUSE I WAS SLEEPING 😴
BTW MAM I WATCHED RECORDED CLASS I UNDERSTOOD ALL CONCEPTS BUT A FEW THINGS THAT I DIDN'T UNDERSTOOD I WILL CLEAR IN YOUR DOUBTS SOLVING CLASS
HERE IS THE ANSWER OF THE HOME WORK QUESTION
IN THE QUESTION WE NEED TO FIND VALUE OF X
ACCORDING TO THE FIGURE
2X+3X+X=180 (LINEAR PAIR)
6X=180
X=180/6
X=30
OPTION NO :- C IS THE CORRECT ANSWER
THANK YOU SO MUCH MAM FOR THIS LOVELY CLASS
Thanks for telling my mistake
@@mamataparida2619
No worries dost
This is very helpful
Please make 1 more session full on numerical of lines and angle
Hello Dhruvi, We will definitely come up with such session for you👍🏻
Bro which numerical
@@bluehubgamingjj2601 shi bola bhai maths mein numerical nhi hoti sums hote h 🙄🙄
Ritik Sir is the best teacher of UA-cam, no one can explain better than him.
homework question answer is option c 30 degree
we need to find the value of x
so, x+2x+3x=180 (by linear pair)
6x = 180
x=180/6
x= 30 degree.
no you r wrong its the sum of straight angle ur proof is wrong mark can be gone
Thank you mam for the explanation I have done this chapter 2 times but i was not able to understand but now its very easy thanks a lot mam I am Apeksha Jain..
Very nice session thankyou somuch
Stay tuned to our Channel for further updates on upcoming Amazing Sessions 👍
Solution for h.w. question
Let us assume x as 1x
So, 1x+2x+3x= 180 degree
Therefore, 6x= 180 degree
Then,value of x will be
X=180/6
So, x=30
Hi mam I am kusum and i have a doubt if two lines intersect each other, then the vertically opposite angle are equal how ?
Through proof of vertically opposite angle therom it has been proved
Homework question -30°
Ritik sir is emotion ❤❤
Thank you 💕
Mam this is very easy
Ans: x+ 2x + 3x = 180 ° ( linear pair )
6x= 180
X = 180/6
X = 30°
Option C
Thankyou mam. Understood. The trick shots to understand various angles was very helpful thanks.
Very very clear explanation...Thank you very much mam!! It helped me a lot for my test...
my fav math tr Khushbooo mam!!
Mam do u take tutions your explanation is wonderful
What is the difference between linear pair & supplementary angles?
Mam can u please make a video on the chapter exponents and surf with more numericals solving???please
And thank you for this ..
Am ur new subscriber..
Do I get the msg if u r taking live session??
Hey Krishne, We will definitely come up with such session for you👍🏻
1X+2x+3x=180° ( linear pair )
6x = 180°
X= 180/6
X= 30°
thank you it was really helping!
it is supplementary angles not linear pair but thanks for cofirming my answer 🙂
its not a pair coz it has 3 angles on a straight line (180 degrees) the reason is (sum of angles on a straight line is 180) 32:35 minutes
Mam how to login in live class and how much fee for only math
i hav my math annuals tommo and im 12 chaps due this helped me a lot thnx a lot
:)
Homework Time! Answers
The Anwer I get is x = 30 which is option C
How I get it?
2x + 3x + x = 180 .......(supplementary angles)
6x = 180
Dividing 6 on both sides, we get
x = 30
Hence, it is the final answer
Thank you mam
Wonderful session ma'am
Thanks man
Awesome teacher
Thank you Kiran 😃
Thankyou ma'am
Mam how become angle AOD + angle AOC
Mam linear pair angles are same to supplementary angles??
no they are not linear pairs are sum of adjecent angles= 180 and supplementtry angles are sum of 2 angles =180 and the answer of ur doubt is linear pairs can be supplementary but supplementry angles can not be linear . that's it
More 7k then this channel will reach 100k subscribers
x+2x+3x=180° ( linear pair )
6x = 180°
X= 180/6
X= 30°
Thank you for the class! Greatly explained
Tum ensta chalati ho
Bolo
X-30°
Amazing
Corresponding and voa and alternate angles
The value of x is 30° mam
Mam 30 degree is answer for homework question
Home work ans. Is 30°
answer of homework question :
x + 2x + 3x = 180 ( adjacent angle)
6x = 180
x = 180/6
x = 30
answer = 30
Great Saharan, Keep watching for more amazing sessions👍🏻
Good afternoon mam
I have a request can you please do excercise of cbse book
Why cant x cant be equal to 127? They are corresponding angles??
Very nycc teachingam
Thanks Yogeshwar, Keep Watching and Keep Learning😊
x+2x+3x=180°( linear pair
6x=180°
x=180/6=30°
homework question
X+2x+3x=180° ( linear pair )
X+5x = 180°
6x= 180°
X= 180/6
X= 30°
so option c is correct
isn't the reason Angles on a straight line bcz linear pair means there are only 2 angles
Mam linear pair ka phir se vdo banao
Maam homework answer is
X=30
Thanks veryyyyyyyyyyyyyyyy much mam🙏🙏🙏
Most welcome Harshitha, Keep Watching and Keep Learning😊
Home work problem (C) 30
Please 1 more session on ncert ex 6.1 and 6.2 please
😢😮😅😊🎉🎉❤
HOME WORK QUESTIONS ANSWER IS : (c) 30
Mam adjacent angles doubt
Mam 102 degree is a what angle
X=30
Right right right right righ..........
Answer is option is 'c' that means 30
Good try Saro, Keep Learning with us😊
33:06 mam pls tell why didnt you took 3 times 5y
Ma am please show sample paper of maths
I just watched the video the answer for the hw question is C option
Answer of home work is 30°
Good Mukesh, Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
Yes
60 is the answer for the Home work
1:01:50
Very nice mass
Ma'am I have tomorrow exam FA-4 thankyou ma'am
All the best Rachana 😊
Video started in 7:30
Ty bro
Mam there is an lagging
The value of x=30
C=30
Hi mam ,I am from Kashmir i want a class for my daughter who iz studying in class 4 ,plzz hw i will contact wd u
Tq mam
As in the figure we have to find the value of x
2x +x+3x=180(linear pair)
6x=180
x=180/60= 30°
So the value of x is 30°
@mamata paride
You did the answer right but you did a silly 😜 mistake or a small mistake in 4 line the mistake was
X=180/60
If X=180/60 then the answer would be 3 nor 30
So in that step
X=180/6
X=30
Option c is the correct answer
Thank you 😊 have a wonderful day
Working mam
Hi didi I like your videos
Mam please explain everything in detail I can't understand well
Thank you mam for wonderful session, your interaction was nice
Hai Kotteswari, Glad you liked it! Stay tuned for more such Amazing Sessions🤗
Kis ko Hard work lgta h yhi chapter 🤔🤔🤔🤔🤔🤔🤔🤔🧐🧐🤨🙄😒
Adjacent angles
Are Supplementary angle and Linear pair the same??
Yes bro
No...
Please mam where come 5y