Q 1 - Ex 9.2 - Mensuration - NCERT Maths Class 8th - Chapter 9, New Syllabus 2023 CBSE

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  • Опубліковано 12 січ 2025

КОМЕНТАРІ • 1,2 тис.

  • @g.o.fgames-on-fire2538
    @g.o.fgames-on-fire2538 Рік тому +9

    you can just use the formula for a cube.... 6a^2.... a being the side, it would also give the same answer (this can only be use in part b)

  • @amitavyas1893
    @amitavyas1893 6 років тому +78

    dear Mansi you r doing excellent job 👍 thanks and blessings.

  • @ज्ञानयोगअजीत
    @ज्ञानयोगअजीत 10 місяців тому +5

    My sister got position bro... I used to teach her by seeing your videos nd she did it.. Really u r gem

  • @PiyushSingh-lt8gu
    @PiyushSingh-lt8gu 5 років тому +25

    Mam you are teaching very well .My son understand every concept clearly by the method of your teaching 💯💯💯🤗🤗🤗😄

  • @amishasahani4755
    @amishasahani4755 5 років тому +28

    Best teacher in the world 👌👏

  • @unitedpolitics6569
    @unitedpolitics6569 4 роки тому +20

    U r the best teacher of all

  • @ffeverything6250
    @ffeverything6250 6 років тому +11

    Thanks Mansi Mam 😊😊😊😊

  • @MohdFarhan-jp4mu
    @MohdFarhan-jp4mu 3 роки тому +2

    App kitna kitna accha samjhati ho really you are the best dear Mansi didi 😍😍😍😍😗

  • @anmolsudan7321
    @anmolsudan7321 6 років тому +15

    Dear Mansi yua work is great it helps me alot thanks.

  • @chaudhary_ff__4933
    @chaudhary_ff__4933 3 роки тому +42

    This video is useful for us only for 1 day only before exam only legends watch this video today

  • @kirtiawasthi4977
    @kirtiawasthi4977 4 роки тому +22

    Really ur channels is very helpful for me 💐

    • @anonymoustalker-y
      @anonymoustalker-y 3 роки тому +8

      Online class nhi karna hai bas inke videos dekhna hai online class me so jana hai hame hai na

    • @umakantsharma1488
      @umakantsharma1488 3 роки тому +4

      @@anonymoustalker-y
      Right bro 🤓✅✅✅✅✔️

    • @Animes-bh5nk
      @Animes-bh5nk 3 роки тому +1

      @@anonymoustalker-y right

    • @komaljamwal8711
      @komaljamwal8711 3 роки тому +1

      Not you only for all

    • @ipeppersky5372
      @ipeppersky5372 3 роки тому +1

      SHOWOFF sala

  • @RuhulAmin-ln4qs
    @RuhulAmin-ln4qs 3 місяці тому +2

    Gratitude's gentle whisper
    In silent thanks, a heart does beat 💖

  • @mojaharhossain2750
    @mojaharhossain2750 5 років тому +12

    Best teacher and beautiful

  • @adarshtiwari3559
    @adarshtiwari3559 4 роки тому +5

    Thankyou so much Ma'am u helped me alot😊👌👍😊

  • @deeptitiwari5179
    @deeptitiwari5179 4 роки тому +20

    You inspired me to begin this new chapter in my life. I couldn't have done it without you.
    I'll always remember attending your class. You are the best teacher!
    Like if u agree

  • @bhartinegi9571
    @bhartinegi9571 5 років тому +2

    You are better than teacher and tuition teacher. You are so great mam

  • @hansikachoudhary9826
    @hansikachoudhary9826 5 років тому +4

    Mam keep it up👍👍👍👍👍

  • @poojakumari4170
    @poojakumari4170 4 роки тому +44

    Mansi mam u are doing very excellent job thanks and blessings

  • @ishan4363
    @ishan4363 4 роки тому +29

    U should have used 6a ^2 formula for cube andade it short

  • @manjeetsingh-iu4mf
    @manjeetsingh-iu4mf 5 років тому +1

    You are best teacher in the world

  • @vincchoudhary9187
    @vincchoudhary9187 6 років тому +34

    Mam aear of cube = 6 multiply side square na

  • @anushkaanushka4952
    @anushkaanushka4952 6 років тому +3

    You are best teacher of mathematics

  • @dikshagautam6388
    @dikshagautam6388 6 років тому +55

    Mam 2nd part me 6lsqure use hoga

    • @akashkumawat7316
      @akashkumawat7316 6 років тому +9

      Question padho pehle question mein likha h ki 2cuboidal boxes

    • @Nmk9952
      @Nmk9952 5 років тому +6

      Cuboidal means either cube or cuboid. So diksha gautam you are correct

    • @OmprakashSahu-rc2ri
      @OmprakashSahu-rc2ri 5 років тому +3

      You are right brother/sister

    • @hades8737
      @hades8737 4 роки тому +4

      4a square se krlo 2 part

    • @ishan4363
      @ishan4363 4 роки тому +3

      Yes it doesn't mean it is cube or cuboid if measurements are same u can use 6a '2 formula.

  • @dhriti1421
    @dhriti1421 5 років тому +17

    Thanks mam I like your channel

  • @anushkaanushka4952
    @anushkaanushka4952 6 років тому +13

    Please upload video of exercise 11.4 also

  • @happyviewer9012
    @happyviewer9012 4 роки тому +43

    U can use the formula 6a² for finding the TSA of a cube. That is a lot more easier than this...

  • @tasmiaansari7283
    @tasmiaansari7283 4 роки тому +3

    I m very thankful to you mansi mam

  • @lekhraj4385
    @lekhraj4385 6 років тому +3

    Thank you mam☺😊☺😊

  • @Raju-fh6br
    @Raju-fh6br 4 роки тому +8

    Are they both cuboid??
    (b) is square, right?..
    But, in question also it is said that 'two cuboidal boxes'.. I'm confused..🤔🤔🙄

  • @ashxa._.a
    @ashxa._.a 3 роки тому +74

    My teacher gave us a particular TSA of cube which is 6l²... but its correct d both ways.. thx mam for explaining 🤗

    • @suhasnithakur6231
      @suhasnithakur6231 3 роки тому +1

      Same here

    • @parveenrana8185
      @parveenrana8185 2 роки тому +2

      Yeah it'll be................cuz this vid was made 3yr ago so our books have been updated ........that's why............

    • @himanichandnani6971
      @himanichandnani6971 2 роки тому

      Same

    • @ACE08690
      @ACE08690 2 роки тому

      Samee

    • @nilishabhagat3221
      @nilishabhagat3221 2 роки тому +1

      Both are same formula for cube because for cube all the dimensions are same

  • @crazy_me1012
    @crazy_me1012 4 роки тому +7

    Mam in A part the area of surface will be in cm² ? Or 14800 only?

  • @geetakumari9443
    @geetakumari9443 4 роки тому +10

    U r a best Mansi dii 😊🥰

  • @MADHANGiri-f5g
    @MADHANGiri-f5g 29 днів тому

    Thanks for teaching mam we understood. Your teaching is very good 😊

  • @booklover3567
    @booklover3567 4 роки тому +13

    Mam, but the 2nd cuboidal box has same l×b×h .so can we call it as cube???

  • @alwayshungry9004
    @alwayshungry9004 6 років тому +3

    Good explanation mam , but I have a doubt that if it's a cuboid then how could its height breadth and length all could be equal which means 50 cm It must be a cube not a cuboid please mam reply and clear my doubt

    • @knightrider8042
      @knightrider8042 6 років тому

      I'm also having the same doubt.I think we should use SURFACE AREA of cube

    • @swatimurgod5937
      @swatimurgod5937 4 роки тому

      It's not the cuboid its cube she used wrong formula but the answer is same

  • @aartiaarti247
    @aartiaarti247 6 років тому +4

    You are great and you are very intelligent mam

  • @raghuveersinghpanwar9903
    @raghuveersinghpanwar9903 9 місяців тому +2

    Mam you are the rock 💟❤ kon kon Manta hai ki mam rock hai comments kro ❤❤

  • @bakaonly5088
    @bakaonly5088 6 років тому +33

    Her introduction change i n this question

  • @krishna_vibes23
    @krishna_vibes23 Рік тому

    TQ thank you very so much mam aapane bahut acche se samjhaya mujhe bilkul samajh aa gaya 🤗🙏

  • @musicalgear3978
    @musicalgear3978 5 років тому +28

    Aap cube ka total surface area six L square bhi le sakte ho

  • @badshotking9814
    @badshotking9814 4 роки тому +1

    You are very good teacher in the world

  • @Tocazoe-k9w
    @Tocazoe-k9w 3 роки тому +13

    I loved this channel soo much it's so much helpfull 💜💜

  • @prathameshlokhande6179
    @prathameshlokhande6179 6 років тому +15

    Cube not understand

  • @abhijeetjadhav7706
    @abhijeetjadhav7706 4 роки тому +7

    like Krna he to kisi ke bhi comment ko like kr do par mam ke video ko like Krna mat bhulo comments ke chakkar me ...

  • @dhruvyadav5928
    @dhruvyadav5928 2 роки тому

    Thank you 💖😊💖😊😊💖😊😊💖💖😊💖💖💖💖😊😊😊😊😊💖💖💖💖 your Chanel is good keep going and agen thank you

  • @RajneeshKumar-yo5rj
    @RajneeshKumar-yo5rj 6 років тому +3

    Mam ye second shape to cube h na to isme to cube ka formula lgega na?????

  • @didarsingh4243
    @didarsingh4243 4 роки тому +2

    Thanks mam I like your channel 👍

  • @vivekmaurya623
    @vivekmaurya623 3 роки тому +3

    Ismein cube ka total surface area s×s×s btaya h jbki class mein mam keh rhin thi ki 6a2 aayega means 6×s×s

  • @ramjatanchaudhary484
    @ramjatanchaudhary484 3 роки тому +2

    Mam your teaching is very good

  • @Ye-qh4zy
    @Ye-qh4zy 5 років тому +5

    Thanks mam . I am watching your channel since 7th standard.

  • @AnitaSharma-eu7bz
    @AnitaSharma-eu7bz 4 роки тому +1

    Mam app bhaut accha padati ho

  • @anuromalik8882
    @anuromalik8882 6 років тому +3

    Thanks mam for teaching in this way .u are superb teacher and I don't need school if you are there.but in b part u did wrong it is 6S2.but it's ok.

  • @tusharmaddan3628
    @tusharmaddan3628 6 років тому +2

    Thanks mam apka sum samaga hua kbi bi koi Nahi bhul skta

  • @rashmisaxena5566
    @rashmisaxena5566 4 роки тому +5

    Mam you are the best teacher. You teach very politely and with concept 😊... 3:28 'mam said let's come to the b part' twice.

  • @aakash__14ry
    @aakash__14ry 2 роки тому +1

    Thanks mam❤️❤️🌹🌹

  • @Keshu_Krishn
    @Keshu_Krishn 5 років тому +10

    Mam can we use the formula of 6lsquare in the (B) part

  • @Jaimatavaishnodevi-l7l
    @Jaimatavaishnodevi-l7l 2 місяці тому +1

    b)
    Total surface area of cube-6a^2
    6(50)^2
    6(2500)
    Ans. 15000
    Length 50 CM
    Breath 50 cm
    Height 50 cm
    Total surface area 2 ( lb+bh+lh)
    2(50×50+50×50+50×50)
    2(2500+2500+2500)
    2(7500)
    Ans .15000
    Ans same

  • @kantarani5131
    @kantarani5131 Рік тому +2

    Mam I have a doubt
    In second part, it was a cube, used formula for area of cuboid but the formula for area of cube is 6l² ❤❤

  • @devenshikhatri6809
    @devenshikhatri6809 Місяць тому

    You explained each and every sum very nicely😊

  • @dopeversus3166
    @dopeversus3166 5 років тому +3

    Nice video thanks for making

  • @sonysah465
    @sonysah465 6 років тому +3

    nice job🙏🙏

  • @mdsafdaralam1500
    @mdsafdaralam1500 4 роки тому +1

    Super hit madam Kamal hai aapkha kha padhna kha
    Mai apkho thank you bolona chatha

    • @SasmitaBiswal-v2t
      @SasmitaBiswal-v2t 11 днів тому

      Tujhe Hindi nahi bolna ata tu mat bolta to acha hot

  • @QuranForAll123
    @QuranForAll123 4 роки тому +3

    guys putting units is very important or marks get deducted in exams , mam you forgot to put the unit of measurment for a part see 4:23 it is 14,800 cm square mam you forgot to put cm

  • @mr.parjapati3940
    @mr.parjapati3940 2 місяці тому

    Mansi mam you are best teacher in the world thanks mam for teaching us ❤❤❤

  • @akaskumar5634
    @akaskumar5634 6 років тому +8

    Thanks for helping me

  • @yogeshsharmaamritsar7306
    @yogeshsharmaamritsar7306 2 роки тому

    You are My favourite teacher

  • @SunilKumar-ff9dj
    @SunilKumar-ff9dj 5 років тому +3

    Mam you are teaching very well i was understand all the questions

    • @js21
      @js21 4 роки тому

      i think u should learn english too buddy

  • @kulvirsingh5804
    @kulvirsingh5804 2 роки тому

    Mam aapne bohot acche se samjhaya
    Thanks mam💯

  • @Lyrics00204
    @Lyrics00204 2 роки тому +2

    Ma'am Total surface area of cube is 6a2 not 2(lb+bh+hl)

  • @soniyasingh4854
    @soniyasingh4854 4 роки тому +1

    Thanku mam you teach very well I understand very well mam and I clear all my doubt and also I enjoy😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊

  • @yeobabae
    @yeobabae 4 роки тому +4

    Wowwwww thanks

  • @nitika809
    @nitika809 5 років тому +1

    Mam i like your channel .
    You explain very nice

  • @paramjitkaur5927
    @paramjitkaur5927 3 роки тому +5

    Thanks 😍😍

  • @yuvrajpaul4577
    @yuvrajpaul4577 2 роки тому

    Mam you are doing great god bless you mam you are giving free education

  • @suryapadmakumar8746
    @suryapadmakumar8746 4 роки тому +5

    Mam i have a doubt ,
    Isnt the b one a cube ?
    All the dimensions are the same
    I tried with cube surface area and i received the answer as 15,000cm²
    Pls explain mam

    • @citroff496
      @citroff496 2 роки тому +1

      u have got the answerr now broooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

  • @ninderkaur3228
    @ninderkaur3228 11 місяців тому +2

    Your hairstyle is Just🔥😂
    BTW nice explaination ❤

  • @vijay4970
    @vijay4970 4 роки тому +4

    you are the best teacher and your way of teaching is superb

    • @virendrachauhan2655
      @virendrachauhan2655 Місяць тому

      Lagata hai tum sab ko nase ho rahe hai

    • @virendrachauhan2655
      @virendrachauhan2655 Місяць тому

      You are nice, you are superb, you are this ..... Pagal hogaya ho kiya kitne he acche lagate hai toh shadi kar lo 😂😒😎 chomu se 😂

  • @junaidpatel9108
    @junaidpatel9108 10 місяців тому +2

    2 Wale ka total surface of cube rahega according to diagram

  • @linnfoxrudrapur4330
    @linnfoxrudrapur4330 3 роки тому +3

    so , what does volume mean's ?

  • @ANIME_07908
    @ANIME_07908 Рік тому +2

    Thank you mam😊😊

  • @joginderahlawat8982
    @joginderahlawat8982 4 роки тому +18

    Excellent teacher you are

  • @kanutanu5782
    @kanutanu5782 2 роки тому +2

    Mam after writing the sum give us 5 minutes to copy and u go to side

  • @darwaheed7343
    @darwaheed7343 6 років тому +7

    mam surface of cube is 6into side square . b part main yahi formula use hoga

  • @sonalimankar2972
    @sonalimankar2972 Рік тому

    Thank youh so muchh ma'm... 🥺🥰👍

  • @raahamkhan
    @raahamkhan 3 роки тому +5

    If u watch these ma'am videos in 0.75x this is more helpfull and understanding 👍

  • @namanjain2537
    @namanjain2537 2 роки тому +2

    Hello mam you are a great teacher

  • @radhabhatt3191
    @radhabhatt3191 3 роки тому +5

    I will take class 8 first time
    Starting me all questions difficult lag rhe the and kuch bhi smajh nhi aa rha tha
    But help your video's ye sab easy lag rha h and ye subject amd ye chapter kaphi interesting lag rhe hai
    And mostly thanks my teacher

  • @ramankumarsharma9171
    @ramankumarsharma9171 2 роки тому

    Thankyou so much mam🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂

  • @NoNo-xy1qt
    @NoNo-xy1qt 4 роки тому +2

    U teach very well mam I can now solve the problems

  • @mr.parjapati3940
    @mr.parjapati3940 2 місяці тому

    You are teaching very nice mam that my marks of maths in exam is good

  • @mahendrasapkal7981
    @mahendrasapkal7981 5 років тому +7

    MAM CAN YOU PLEASE MAKE A VIDEO OF FORMULA BECAUSE IFORGOT THEM AGAIN AND AGAIN

    • @crazy_me1012
      @crazy_me1012 4 роки тому +4

      Formulas u can learn from the introduction video of the same chapter.
      Ok ?

    • @prachetsingh862
      @prachetsingh862 4 роки тому +1

      Me also

  • @vikramsinghmeena1181
    @vikramsinghmeena1181 3 роки тому

    You are the best teacher in the future

  • @rockstareditz8324
    @rockstareditz8324 4 роки тому +27

    *Mam cube Ka toh area Ka formula (6a)² hota hai* 😵

    • @RajVeer-ht6pc
      @RajVeer-ht6pc 3 роки тому +2

      Nhi cube ka formula (6l)²hota h

    • @somethinggood.4029
      @somethinggood.4029 3 роки тому +2

      @@RajVeer-ht6pc See
      l means= length
      a= edge means the same Bro!!

    • @AMAN-ln9ug
      @AMAN-ln9ug 2 роки тому

      But q is formula to 6lora² hoga na

    • @Alone_7428
      @Alone_7428 2 роки тому

      Yes,you are right but i think mam have say by mistake

    • @priyankanegi9935
      @priyankanegi9935 2 роки тому +2

      @@Alone_7428 no bro mam answer is rhight

  • @anjalirathore635
    @anjalirathore635 3 роки тому +1

    You are best teacher

  • @umacharansaikia369
    @umacharansaikia369 3 роки тому +6

    Wow wonderful expansion mam 😍🥰

  • @jigyasabhati9990
    @jigyasabhati9990 11 місяців тому +2

    Ma'am you really teach Insaneee! Love your videos🌺❤

  • @pranavsai9229
    @pranavsai9229 2 роки тому +6

    Important Doubt:Can we use volume to solve this. Then also we get the same answer.. please reply it's urgent

  • @bholachahal8999
    @bholachahal8999 3 роки тому

    Mam aap ne bhot ache se samjhaea

  • @badshotking9814
    @badshotking9814 4 роки тому +5

    Best maths teacher 👍👍👍

  • @ShibaQuarshi-vx6vf
    @ShibaQuarshi-vx6vf Рік тому

    Nice video thanks for making