Class 9 Maths | Chapter 13 | Introduction | Surface Areas And Volumes | NCERT

Поділитися
Вставка
  • Опубліковано 18 гру 2024

КОМЕНТАРІ • 2,5 тис.

  • @akshit0715
    @akshit0715 Рік тому +945

    Time Stamp
    00:00 Introduction
    00:25 Surface Area
    03:59 Volume
    04:53 Shape: Cube
    06:35 Shape: Cuboid
    10:20 Shape: Right Circular Cylinder
    12:30 Shape: Hollow Right Circular Cylinder
    15:47 Shape: Right Circular Cone
    18:43 Shape: Sphere
    19:28 Shape: Hemisphere
    20:51 Outro
    Show less
    Cube
    CSA=4a²
    TSA=6a²
    Volume=a³....
    Cuboid
    CSA=2h(l+b)
    TSA=2(lb+bh+hl)
    Volume=lbh...
    Cylinder
    CSA=2πrh
    TSA=2πr(h+r)
    Volume=πr²h...
    Cone
    CSA=πrl
    TSA=πr(l+r)
    Volume=⅓/πr²h
    Slant height=√r²+h²...
    Sphere
    TSA=4πr²
    Volume=4/3πr³...
    Hemisphere
    CSA=2πr²
    TSA=3πr²
    Volume=⅔πr³
    thank you for 100+ likes ☺☺😎😎

  • @anegaming6969
    @anegaming6969 2 роки тому +3090

    All the best guys for Final Exams hope you all success

  • @tusharsahu3011
    @tusharsahu3011 3 роки тому +732

    Time Stamp
    00:00 Introduction
    00:25 Surface Area
    03:59 Volume
    04:53 Shape: Cube
    06:35 Shape: Cuboid
    10:20 Shape: Right Circular Cylinder
    12:30 Shape: Hollow Right Circular Cylinder
    15:47 Shape: Right Circular Cone
    18:43 Shape: Sphere
    19:28 Shape: Hemisphere
    20:51 Outro

  • @aashinparvin4020
    @aashinparvin4020 Рік тому +89

    All the best guys for final exams hope you all success ❤️

  • @Sidd01
    @Sidd01 3 роки тому +1536

    I wish all students will success in their half yearly exam 😁🙏

  • @gembarnes9166
    @gembarnes9166 2 роки тому +71

    Timestamps✨
    0:00 Intro
    0:29 Surface area
    2:01 Lateral Surface area (L.S.A. = C.S.A.{Curved surface area}
    2:51 Total Surface area
    3:04 Difference b/w Area and Surface area
    3:21 Area
    3:29 Volume
    4:52 Cube
    6:34 Cuboid
    10:19 Right circular cylinder
    12:29 Hollow right circular cylinder
    15:46 Right circular cone
    18:42 Sphere
    19:26 Hemi-Sphere
    20:49 Outro
    Best of luck with whatever you do

  • @Focusedflame_1997
    @Focusedflame_1997 Рік тому +26

    10:56 ma'am the formula for the volume of right circular cylinder would be
    (pi × r² × h)

  • @Epic-Gaming3257
    @Epic-Gaming3257 Рік тому +38

    In new NCERT book (2023-24) cube, cuboid, right circular cylinder and hollow right circular cylinder are deleted.
    15:44

    • @SunilKumar-ru4wf
      @SunilKumar-ru4wf Рік тому +1

      Therefore it is in 11th chapter in new book ?? Lots of things are changed i am getting confuse !!

    • @2aa7
      @2aa7 11 місяців тому +1

      @@SunilKumar-ru4wf Yes, it is the 11th chapter. The topics that is there are (i) curved surface area of cone, (ii) total surface area of a right circular cone, (iii) surface area of sphere, (iv) curved and total surface area of hemisphere, (v) volume of cone, (vi) volume of sphere and (vii) volume of hemisphere.

    • @nishaaggarwal9845
      @nishaaggarwal9845 11 місяців тому +1

      Really thanks 🙏🏻🙏🏻

    • @ReshmaShaikh-mj7wo
      @ReshmaShaikh-mj7wo 10 місяців тому +1

    • @SadiyaKhan-or2zd
      @SadiyaKhan-or2zd 10 місяців тому +2

      Thank you so much ❤️😊

  • @ARYAN-v143ipl
    @ARYAN-v143ipl Рік тому +68

    Cube
    CSA=4a²
    TSA=6a²
    Volume=a³....
    Cuboid
    CSA=2h(l+b)
    TSA=2(lb+bh+hl)
    Volume=lbh...
    Cylinder
    CSA=2πrh
    TSA=2πr(h+r)
    Volume=πr²h...
    Cone
    CSA=πrl
    TSA=πr(l+r)
    Volume=⅓/πr²h
    Slant height=√r²+h²...
    Sphere
    TSA=4πr²
    Volume=4/3πr³...
    Hemisphere
    CSA=2πr²
    TSA=3πr²
    Volume=⅔πr³

  • @ved_upadhyay
    @ved_upadhyay 3 роки тому +34

    Aapke Karan mera maths ka aaj ka paper bahut hi mast gaya. Thanks mam 😁

  • @BelieveingodeverythingisGood
    @BelieveingodeverythingisGood Рік тому +5

    Mam aap bahut accha padati ho...❤❤❤thanks hamari itni help karne ke liye.....❤❤❤😊😊

  • @legend_yuvraj__1
    @legend_yuvraj__1 2 роки тому +236

    All the best every one for your final exam 👍👍

    • @kavin7161
      @kavin7161 2 роки тому +1

      Thnku

    • @gamsphing4759
      @gamsphing4759 2 роки тому +2

      I am not reading this for my finals I finished my exams I gotta revise it for the entrance exam

    • @mohdowaissiddiqui1881
      @mohdowaissiddiqui1881 2 роки тому +1

      @@gamsphing4759 maarle hamari

    • @gsgaming647
      @gsgaming647 2 роки тому +2

      Don't become over smart

    • @gsgaming647
      @gsgaming647 2 роки тому +1

      @「Ҝ卂尺ㄒ卄丨Ҝ」 oh really just shut up

  • @manasamokashi8183
    @manasamokashi8183 2 роки тому +32

    Thank you mam for ur wonderful explanation and from tomorrow we have final exams and I saw ur video of this chapter and I have created all my doubts thank you mam thank you so much

  • @shaurya.1438
    @shaurya.1438 2 роки тому +10

    0:29 Surface area
    2:01 Lateral Surface area (L.S.A. = C.S.A.{Curved surface area}
    2:51 Total Surface area
    3:04 Difference b/w Area and Surface area
    3:21 Area
    3:29 Volume
    4:52 Cube
    6:34 Cuboid
    10:19 Right circular cylinder
    12:29 Hollow right circular cylinder
    15:46 Right circular cone
    18:42 Sphere
    19:26 Hemi-Sphere
    20:49 Outro

  • @vloggingkiduniya4809
    @vloggingkiduniya4809 3 роки тому +61

    Mam you explain better😌than my school teacher I understand all your concept thank you mam

    • @pavankushwaha9848
      @pavankushwaha9848 2 роки тому +1

      If you focus to the explanation of your school teacher you will find both are equal .

    • @royalfreindsyt777
      @royalfreindsyt777 2 роки тому +1

      Yup you are right

    • @myquotes8890
      @myquotes8890 2 роки тому +2

      Lol you are roasted

    • @aparnapatil4474
      @aparnapatil4474 2 роки тому +1

      @@pavankushwaha9848 then why are you here?

    • @pavankushwaha9848
      @pavankushwaha9848 2 роки тому +1

      @@aparnapatil4474 Because I also didn't focused on this chapter

  • @rahinichauhan563
    @rahinichauhan563 2 роки тому +72

    The efforts she is putting for the students is just incredible
    She understands student like no one even the school teachers don't understands us that way
    Being in the screen still so interactive
    HATS OFF TO HER!!!!!!!!!!!

  • @divansingh3306
    @divansingh3306 Рік тому +13

    Teaching twice is more easier than understanding it first time

  • @ridamirza945
    @ridamirza945 3 роки тому +117

    Woah i just started this chapter for term 2 and she uploaded it today, thank you maam

  • @adithrays8150
    @adithrays8150 3 роки тому +19

    the volume of the cylender 12:20 is stated wrong , it should be pi * rsquare* h

  • @gajendrakhardia6996
    @gajendrakhardia6996 2 роки тому +2

    Thanku mam merko school m kuch samjh nhi Aya tha pr apne sare dout clear kr diya💯💯💯💯💯😊😊😊

  • @unique_gamer3965
    @unique_gamer3965 Рік тому +14

    i was very weak in maths but now because of you it is my favourate subject

  • @anirban479
    @anirban479 3 роки тому +32

    Mam volume of cylinder=πr^2h hoga,12:23 min

  • @Sidd01
    @Sidd01 3 роки тому +118

    I wish all students will success in their half yearly exam 😁🙏😊

  • @AshokSingh-rj9bq
    @AshokSingh-rj9bq 2 роки тому +427

    All the best to all for their finals👍📱👍

  • @FarazKhan-bd5gh
    @FarazKhan-bd5gh 2 роки тому +3

    Thanku so much mam for your help and support 🙏🏻❤️aap bahut accha padhati ho ji

  • @neekshithareddy2850
    @neekshithareddy2850 3 роки тому +64

    Ma’am ur the best teacher world is proud to have u.. thank u so much

  • @Chetasvi3112
    @Chetasvi3112 2 роки тому +9

    Thanks mam 😊😊 you are the best teacher ever

  • @MH_EDITZ
    @MH_EDITZ 3 роки тому +89

    Please teach us Class 9 science also.
    Highly requested..!!!

    • @xyz-vn3rh
      @xyz-vn3rh 3 роки тому +1

      yeah!!!

    • @yunusshaikh850
      @yunusshaikh850 3 роки тому +5

      yes mam please teach us class 9 science also.

    • @yunushshaikh9742
      @yunushshaikh9742 3 роки тому +5

      Yes teacher .Please teach us class 9 Science also.

    • @ayushi1746
      @ayushi1746 3 роки тому +2

      No Apne amrit sir haina vedantu pe so why tension

    • @laatajisharma7271
      @laatajisharma7271 3 роки тому +1

      Yes mam please teach class9 science

  • @HatimAli-xh5lj
    @HatimAli-xh5lj 11 місяців тому +3

    In new books the intoduction is start from
    15:46 surface area of a right circular cone
    18:41 surface area of sphere
    19:26 surface area of hemesphere

  • @ranjankuwar4659
    @ranjankuwar4659 Рік тому +1

    Mam Aap Bahot Acha Padathe ho or aap Ko hamari Maths Teacher Hona Chahiye mam you So Nice Study leaned with students

  • @siddhigaikwad4283
    @siddhigaikwad4283 2 роки тому +31

    Mam ur teaching method is Great We all understand Clearly.

  • @vanigupta4889
    @vanigupta4889 3 роки тому +6

    Thnk god this teacher ..started teaching

  • @shankaarkumarchouhan7075
    @shankaarkumarchouhan7075 3 роки тому +9

    The person who can explain better is the best teacher like Mansi mam be as Mansi mam.

  • @MamtaSharma-fr5yy
    @MamtaSharma-fr5yy 2 роки тому +5

    Kyaa teacher h yrr...❤❤❤🙌🙌

  • @harideep9303
    @harideep9303 2 роки тому +4

    Mam kl mera exam hai ... Aur muje smj aa gaya hai ab yh chapter apka explain krne ka trika bhut hi acha hai mam thnku soo.much ☺☺

  • @lovelygakhar38
    @lovelygakhar38 3 роки тому +7

    Mam says bye so cute mam's bye like a relief for complete our chapter thank you mam 😘😘😘❣️❣️❣️❣️

  • @mr.everything7205
    @mr.everything7205 2 роки тому +5

    Thank u very much mam from tamil nadu watching this vedio addicted to this teaching method

  • @Chemistryultralegends
    @Chemistryultralegends 3 роки тому +5

    Mansi mam you are the best teacher ❤️❤️❣️❣️

  • @skhamzu9337
    @skhamzu9337 2 роки тому +45

    I wish all students will success in their half yearly exam 😊🏵️🏵️

  • @ujiswati
    @ujiswati 2 роки тому +36

    IT's 5 in the morning my exam starts at 10:50, wish me luck

  • @RajA-ql9le
    @RajA-ql9le 2 роки тому +22

    from your teaching i got 32 out of 40 thank you mam ✌✌ i am second in 9th whole 3 classess

  • @aneeques
    @aneeques 3 роки тому +33

    you teach better than my teacher❤️

  • @gurmangurmansinghsandhu4664
    @gurmangurmansinghsandhu4664 Рік тому +2

    Mam ur teaching skills r jst incredible... Pls physics bhi padha diya kro🙏🙏❤️👍

  • @NirmaPaliwal-pj1gw
    @NirmaPaliwal-pj1gw 9 днів тому +1

    Mam was the best teacher ❤❤

  • @CBSEGamerYt786
    @CBSEGamerYt786 2 роки тому +13

    Volume of Cylinder = πr²h . Ma'am you teaches so well❤️❤️🔥

  • @rathore582
    @rathore582 3 роки тому +33

    I wish all student sucess in final exam

  • @carenshibu7054
    @carenshibu7054 2 роки тому +46

    Tommorow is my final exam and am only starting to study this chapter.. and there is lot of excercise to study i am not sure if i will be able to complete this whole chapter today... 🥲

  • @nashratanaazangelkhan8919
    @nashratanaazangelkhan8919 2 роки тому +4

    0.01 "Hello my lovely students"❤
    Hi sweet mansi mam.. ..

  • @rishi4794
    @rishi4794 2 роки тому +12

    Science- bkp
    English-animation study
    Maths- mkr classes
    And Ranveer class 9
    Social- complexity simplifier

  • @rashpalsarpanch2359
    @rashpalsarpanch2359 2 роки тому +10

    Thankwu very much mam🥰🥰

  • @uk_pigeon_lover
    @uk_pigeon_lover 2 роки тому +6

    Thankyou mam you are really nice explanation ☺😌

  • @babbalsalhotra2130
    @babbalsalhotra2130 2 роки тому +15

    Mam your teaching is really amazing ❤️. my all doughts are clear to see this video . ❤️❤️

  • @salonikumari3100
    @salonikumari3100 2 роки тому +6

    Thanku ma'am for best explanation 😘

  • @motivationallines.0145
    @motivationallines.0145 2 роки тому +1

    Mai kisse video ko like nhi krti bt aap itna acha padhate ho ki itna acche se samjhate ho ki kya he kahe like krna he padta hnn🙃😊😊

  • @dowlathzaimizbakhatoon6172
    @dowlathzaimizbakhatoon6172 3 роки тому +5

    Ur explanation 💝💝💝💝👍👍🔥🔥🔥👌👌👌👌👌🎉🎉🎉🎉🎉

  • @mayrakhan2919
    @mayrakhan2919 2 роки тому +4

    Mam your all videos helps me a lot thank you so much mam

  • @Easy-recipe510
    @Easy-recipe510 Рік тому +8

    TSA of right circular cone is π(r + l) r.

  • @vikramsinghrajput8690
    @vikramsinghrajput8690 Рік тому +21

    Exam ke 1 din pehle dekh raha hu😂wish me all the best

  • @arshiyabanu4816
    @arshiyabanu4816 2 роки тому +8

    Kal mera exam hai
    Mujhe padhne mai mushkil ho rahi thi toh maine yeh video dekha
    Mujhe yeh chapter samajh ne mai easy laga
    Thank u so much for this video 😃😍😍😍

  • @ayushideshwal8846
    @ayushideshwal8846 9 місяців тому +2

    mehnat itni khamosi se karo kamyabi sor macha de best of luck

  • @poonamgola2860
    @poonamgola2860 2 роки тому +11

    Mam after Albert Einstein you are the second genius.....mam the way you explain is excellent 💜

  • @ashking3974
    @ashking3974 Рік тому +8

    Jo chahte hea ki exam sahi jaii to (mea hanuman ji sea prea Karu GA) par please ek like kar do👌👌👌👌

  • @ridhimachugh5193
    @ridhimachugh5193 Рік тому +1

    MAM your teaching skills are very good mam thanku mam

  • @ncerteducationalclasses
    @ncerteducationalclasses Рік тому +4

    Mam sorry to tell😢 a mistake on your vedio that on 12:23 the formula of volume of right circular cylinder is πr2h( π ×radius) square ×height insted of πr2 (excuse me)😅

  • @abubakarghazi7677
    @abubakarghazi7677 3 роки тому +9

    Thanks mam I need this chapter very much

  • @revasharma3267
    @revasharma3267 Рік тому +5

    Tomorrow is my paper of math thank uu for help me 🥰

  • @Techno_gamerz47286
    @Techno_gamerz47286 Рік тому +3

    You teach it very well mam . Thanks for helping me in my exams💞🥰

  • @legendkillff2137
    @legendkillff2137 2 роки тому +1

    Thanks didi you are best teacher🤘🤘❤️❤️💝💝

  • @wish937
    @wish937 2 роки тому +1

    Mam you are world's best teacher for me🥰

  • @hamstertail8622
    @hamstertail8622 2 роки тому +31

    Ma'am please upload more videos of class 10th, I really understand very well after watching your explanation video😃, and I am watching your video since class 7th 8th 9th❤, Ma'am please complete all the chapters of maths ncert class 10th🙏🏼 , I am waiting to watched them😔

  • @RakeshSharma-we7dq
    @RakeshSharma-we7dq 2 роки тому +33

    Explained very well👏🏻

  • @shauryapratapsingh3223
    @shauryapratapsingh3223 3 роки тому +31

    Thank you didi you Never disappointed me😊😊😊

  • @pawanjain287
    @pawanjain287 Рік тому +2

    In new book edition (2023-24) only cone,sphere, hemisphere are in syllabus rest are deleted so vdio starts from 15:44

  • @ishikaSaxena795
    @ishikaSaxena795 Рік тому +1

    Thankyou itna accha padane ke liye ❤❤

  • @chandrasekharmalik8303
    @chandrasekharmalik8303 Рік тому +3

    Mam I am teacher of aadhar school but ur teaching style is to much beautiful than my teaching style 😊🙏🙏🙏🙏

  • @Bella-zx2hh
    @Bella-zx2hh 2 роки тому +29

    Bhaio hmare offline exam leke rhenge school Wale🙃
    All the best;)

    • @mamtathakur1675
      @mamtathakur1675 2 роки тому

      Ara start ho gye hai....

    • @Bella-zx2hh
      @Bella-zx2hh 2 роки тому

      @@mamtathakur1675 didi ji mene comment ek mahine phle Kia tha🙂

    • @mamtathakur1675
      @mamtathakur1675 2 роки тому

      @@Bella-zx2hh but my small brother our exams start then...😛

    • @Bella-zx2hh
      @Bella-zx2hh 2 роки тому +2

      @@mamtathakur1675 ohk but mere to 11 April se 25 April
      Fir we r in tenth class😗

    • @mamtathakur1675
      @mamtathakur1675 2 роки тому

      @@Bella-zx2hh oo ya ya....

  • @motivation4862
    @motivation4862 Рік тому +6

    Respected Ma'am the formula of right circular cylinder is πr^2h .

  • @gopaldubeydubey9348
    @gopaldubeydubey9348 Рік тому +1

    Mam you are best teacher of math

  • @bharatibhoye1290
    @bharatibhoye1290 Рік тому +2

    Thankyou mam🙂, your teaching is very best I understand everything easily... And all the best guys for your all exams 👍👍

  • @deekshadangi9487
    @deekshadangi9487 3 роки тому +9

    Thankyou for teaching very well
    I like the teaching way you teach

  • @parvindertiger3577
    @parvindertiger3577 3 роки тому +32

    Thank you so much ma'am for starting this chapter

  • @charanbreddy2604
    @charanbreddy2604 Рік тому +4

    This channel was kept for backbenchers 😎

  • @kartiksonkar1456
    @kartiksonkar1456 2 роки тому +1

    Mansi thanku for make this video because I see this video one day before my final exam

  • @sarojdevi-w7n
    @sarojdevi-w7n 3 роки тому +15

    Thank you so much mam your teaching is the best 😊😊

  • @suryaveersinghchouhan7773
    @suryaveersinghchouhan7773 Рік тому +10

    *All the best guys for final exams hope you all success* 😂😊👿👍

  • @nikitasharma3755
    @nikitasharma3755 2 роки тому +4

    Thank you Ma'am ❤️😘😘😘😘

  • @SapnaSharma-ol4si
    @SapnaSharma-ol4si 2 роки тому +1

    Aap bahut accha padhate ho ma'am 👍🏻👍🏻👍🏻

  • @gavrigobade
    @gavrigobade 10 місяців тому

    Mam your explanation is fabulous so clarification is seen and so on ❤❤❤❤❤❤❤

  • @arj4445
    @arj4445 3 роки тому +7

    Best teacher in whole world❤️

  • @juhivlog6047
    @juhivlog6047 2 роки тому +6

    Thanks for teaching ma'am ☺️

  • @urmilasharma1266
    @urmilasharma1266 2 роки тому +3

    Thank you ma'am you are best teacher 👍👍

  • @rekhapatwal8402
    @rekhapatwal8402 2 роки тому +1

    You are my bestest teacher ever 🦋💜

  • @missindiannavodayangirl288
    @missindiannavodayangirl288 2 роки тому +6

    Thank u so much ma'am 💫

  • @Manya_roy
    @Manya_roy 3 роки тому +21

    Thank you mam for starting this chapter ❤❤🙏🙏 , you are the best teacher of the world 🌏 . Iam so happy😊😊,

  • @dipanshusharmadwps3807
    @dipanshusharmadwps3807 3 роки тому +10

    Mam it was awesome to study with you thank you mam For so.... Much knowledge thank you mam 😊

  • @mrrohanff2796
    @mrrohanff2796 3 роки тому +5

    Mam you are a great teacher

  • @DesiCricketerz
    @DesiCricketerz 2 роки тому +13

    All the best for our examinations 💓

  • @bigobinarybazaar
    @bigobinarybazaar Рік тому +5

    I watch this video before 3 hours left for exam 😂but I got 80% marks in surface area and volume s👍

  • @aniiiiiket21
    @aniiiiiket21 2 роки тому +3

    Mam rocked students shocked 😲

  • @sabakhansaba9078
    @sabakhansaba9078 3 роки тому +21

    Best wishes to you, 🤩 your channel is going to have 2 lakh subscriber 🌺🌺🌺🌺 I m very happy 😊