Class - 9th, Maths Ex - 12.2 Q - 3 ( Heron's Formula) Solution CBSE NCERT

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  • Опубліковано 2 січ 2018
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КОМЕНТАРІ • 2,4 тис.

  • @nikitashingote921
    @nikitashingote921 3 роки тому +921

    Sir ap har question me bol rhe ho link description box me h but vha to koi link nhi h sirjiii..

    • @sumitsati1202
      @sumitsati1202 3 роки тому +83

      Dear Sir have also made video on how to convert under-root into decimal you can check

    • @technicalrahul4298
      @technicalrahul4298 3 роки тому +28

      Yes

    • @interestingvideos1468
      @interestingvideos1468 3 роки тому +32

      Yes you are absolutely right😒😒😒😒

    • @peeyush1613
      @peeyush1613 3 роки тому +44

      @@mayankagnihotri9551 Ladki dekhi nahi ke line maarna shuru😂

    • @peeyush1613
      @peeyush1613 3 роки тому +13

      @@nikitashingote921 haha

  • @arvindatram163
    @arvindatram163 3 роки тому +390

    I have seen most of the students saying thanks its more valuable than money that they are having the respect for mandeep sir

    • @aryangore9640
      @aryangore9640 3 роки тому +11

      ????

    • @kidsknowledgevideo6043
      @kidsknowledgevideo6043 3 роки тому +10

      Ekdam sahiii

    • @aartigupta4312
      @aartigupta4312 3 роки тому +11

      Right 👍

    • @kidsknowledgevideo6043
      @kidsknowledgevideo6043 3 роки тому +16

      A ball moving with speed 9 metre per second strikes an identical stationary ball such that after collision the direction of EAch ball makes an angle of 30 degree which angular line of motion the mass of each ball is M kg what is the loss of kinetic energy of collision ...
      Koi solve karo

    • @hroberts2876
      @hroberts2876 3 роки тому +5

      @@kidsknowledgevideo6043 i dont know

  • @roshangaul45
    @roshangaul45 3 роки тому +166

    Radha ka plane Radha ke dimensions usmein mein uska area kyun nikalu??

  • @mr.strangeryt6737
    @mr.strangeryt6737 2 роки тому +2

    Thanks sir ap mujhe mere tution sir se bacha lia aj thanks a lot 👍👍

  • @soniaali6426
    @soniaali6426 4 роки тому +29

    Sir please root ki value kese nikal ye h sir please is topic pe video banana sir please

  • @kapilkumar2084
    @kapilkumar2084 5 років тому +64

    Please sir upload next video of how to find, square root value

    • @alishagoyal5409
      @alishagoyal5409 4 роки тому +2

      @@NavneetKumar-sn3hm tmij sikh le

    • @ishitasingh1509
      @ishitasingh1509 4 роки тому +2

      @@NavneetKumar-sn3hm tmiz se bolo plz

    • @ishitasingh1509
      @ishitasingh1509 4 роки тому +2

      @@NavneetKumar-sn3hm tmij sikh lo 😞😞😞 (batttamiiiz)!!!😡😡😡😡

    • @retromania526
      @retromania526 4 роки тому +2

      @@ishitasingh1509 shi kaha

    • @sugoiiininjadesuu7262
      @sugoiiininjadesuu7262 4 роки тому +1

      @@NavneetKumar-sn3hm acha navneet yaha padta hai 😂

  • @chheringangmo8218
    @chheringangmo8218 3 роки тому +25

    Thanks sir helped a lottttttt those who found it helpful like the comment👇

  • @Rimjhim_9991
    @Rimjhim_9991 3 роки тому +12

    Thankyou so much mandeep sir .

    • @brookssalvador7888
      @brookssalvador7888 3 роки тому

      i realize it's kinda off topic but does anyone know of a good place to watch new series online?

    • @carlkai9832
      @carlkai9832 3 роки тому

      @Brooks Salvador i would suggest Flixzone. Just search on google for it =)

  • @therealknowledge5642
    @therealknowledge5642 5 років тому +50

    Bhai aap bohot Acha padhate hi yar u r great bro not joking

  • @AjayKumar-dx3em
    @AjayKumar-dx3em 3 роки тому +134

    You all members are right there no link in description.

  • @seokjinstoe
    @seokjinstoe 2 роки тому +101

    If I keep school aside, I study by my own and your videos assist me which I'm really thankful for. Also the way you explain things and often repeat what you expounded without any student asking you to, that way there's no need to reverse the videos of yours to understand what we might haven't on first listen. I greatly appreciate your work.
    I've never commented under your channel but today I wanted to just comment down each thing I've been storing to say at once.
    Thank you sir! Saying this on the behalf of every student of yours.

  • @CrazyCompanion
    @CrazyCompanion 3 роки тому +45

    4:34 There is no such link in the description box.

  • @amitjain3929
    @amitjain3929 4 роки тому +12

    Yaar Radha ne banaya toh paper bhi wohi jode pata nahi kab tak hum jaise massum samaj sewa karte rahenge

  • @MayankYadav-kv7sg
    @MayankYadav-kv7sg 3 роки тому +22

    Sir ji muge root ki value nhe aati plz help me

    • @MayankYadav-kv7sg
      @MayankYadav-kv7sg 3 роки тому

      @@vklover6572 aap kon

    • @roh5754
      @roh5754 3 роки тому +1

      😂😂yha kya chal rhah

    • @roh5754
      @roh5754 3 роки тому +2

      Root ki value hoti h
      Jake google pr search kro baccho

    • @roh5754
      @roh5754 3 роки тому +1

      @@vklover6572 and vansh vo khush nhi kuch hota h

    • @roh5754
      @roh5754 3 роки тому +1

      @@vklover6572 maam? I'm 13 years old😂😂😂

  • @balls.kisser
    @balls.kisser Рік тому +14

    In the 3rd part can we use trapezoid formula to find area?

    • @t_c7710
      @t_c7710 Рік тому

      Ya but we first have to find h

    • @justdashgaming6947
      @justdashgaming6947 Рік тому +1

      @@t_c7710 we can also find 'h' but it's more easier to make 3 triangle and do it

    • @Sachinsharky
      @Sachinsharky Рік тому

      Yes for that you have to break 2 cm line into 3 parts
      .5,.5,1 cm then take Base of triangle .5 cm and find the height then put it in trapezium s area

    • @prachisharma733
      @prachisharma733 7 місяців тому

      Yes

    • @balls.kisser
      @balls.kisser 7 місяців тому

      @@prachisharma733 i am in class 10th now prachi 😂

  • @hansalpatel6114
    @hansalpatel6114 3 роки тому +30

    In First Part 1:25 There was no need to find triangle with Heron's Formula it can be found directly by 1/2*base*height as it is iscocelse triangle

  • @abdulvhludhary9408
    @abdulvhludhary9408 3 роки тому +7

    Kon kon exam ke subha me Dekh rha h😂😂😂😉😉😉😉😄

  • @akshithsharma3239
    @akshithsharma3239 3 роки тому +15

    The question was difficult but aapki explanation se sab samaj aa gya thankyou sir

  • @ArpitSingh-vl6kk
    @ArpitSingh-vl6kk 3 роки тому +17

    sir mai aapka bhut aabhar manta hu ki aap jaise teacher's hmare india me hai

  • @rohithav4265
    @rohithav4265 3 роки тому +4

    Thanks a lot bro..
    Tomorrow is my maths examination..
    Very useful video ..
    Thanks a lot ..

  • @priyanshukumarverma6985
    @priyanshukumarverma6985 3 роки тому +33

    Root mein no. H toh kaise ishe decimal mein late h
    Aap bole ki description mein link de doonga but koi bhi link mein ye nhi bata rha

  • @aakashmishra6153
    @aakashmishra6153 2 роки тому +10

    I got this correct at the first time, exactly 19.27

  • @preetindersingh6938
    @preetindersingh6938 3 роки тому +4

    Sir ko fever hai par fir bhi vo padha rahe hai...salute to the sir👑👑👑

  • @statusbadshah499
    @statusbadshah499 3 роки тому +25

    Sir how. to find root value

    • @reporterlive3716
      @reporterlive3716 3 роки тому +2

      By long division , don't follow any trick only long division method to find any root.

    • @alphameric7691
      @alphameric7691 3 роки тому

      link in description 😂😂

    • @srg_itachi4800
      @srg_itachi4800 2 роки тому

      By multiple of same number 2 times and we got the value of root value
      For eg:- √9 = 3
      √9= 3 x 3 so its value is 3 cm or m²

  • @comdyvideo6242
    @comdyvideo6242 4 роки тому +13

    This is the best teachers and teaches smartly like kar ka batyo kitana acha padta ha

  • @ranigupta8596
    @ranigupta8596 3 роки тому +7

    Thank you sir I have more problem this question but now watch video all doubts are clear

  • @moujilalyadav8534
    @moujilalyadav8534 2 роки тому +1

    Thankyou so much sir because online class me to kuch samajh nahi aata hai aap Jo video banate Ho usse hamen bahut help milati hai so thankyou so much sir 🙏🙏🙏🥰🥰

  • @LOVELY-wt3wi
    @LOVELY-wt3wi 3 роки тому +6

    Thanks sir 😊😊nice explanation 👍👍

  • @sourabhyadav1655
    @sourabhyadav1655 4 роки тому +18

    You are the great teacher in the world 😀😀😀😀

  • @karanjoshi9014
    @karanjoshi9014 4 роки тому +6

    Thanks sir your video help me a lot

  • @tikkajayramsharma4175
    @tikkajayramsharma4175 3 роки тому +5

    Sir your videos is amazing for learning 📝📝📝

  • @indumishra3968
    @indumishra3968 Рік тому +8

    Evergreen public school 🙂 thanks sir ❤️

  • @LoveKumar-zm7wk
    @LoveKumar-zm7wk 6 років тому +54

    where is link

  • @saloniiiiii9056
    @saloniiiiii9056 5 років тому +20

    Thank you sir mere exams 16 November se hai Apki video se
    Mujhe bahot help MIL rhi hai😊😊😊😊

  • @jasssingh3789
    @jasssingh3789 3 роки тому +4

    sir yaha teen equilateral ki jagah trapezium ka area nhi nikal skte?

    • @Sachinsharky
      @Sachinsharky Рік тому

      Yes for that you have to break 2 cm line into 3 parts
      .5,.5,1 cm then take Base of triangle .5 cm and find the height then put it in trapezium s area

  • @balmikikumar6145
    @balmikikumar6145 3 роки тому +1

    You are the best teacher in the world 😋🤗🤗🤗

  • @nishagupta9524
    @nishagupta9524 4 роки тому +14

    Link,...?

  • @gourav7675
    @gourav7675 3 роки тому +21

    Thank you sir...now my all doubts is cleared..your teaching way is awesome sir..once again thank you Soo much sir....☺️☺️

  • @prasanthikesari1928
    @prasanthikesari1928 3 роки тому +41

    Too good your explanation. Exactly to my expectations as good teacher. Loved it

  • @parthsawant7864
    @parthsawant7864 3 роки тому +12

    THANK YOU SIR SO YOU ARE BEST YOU HELPED ME A LOT . COME AND TEACH IN MY SCHOOL. PLZ SIR

  • @akshitaranout5513
    @akshitaranout5513 5 років тому +5

    Excellent you teach us better thank you

  • @sangeetaarora3323
    @sangeetaarora3323 3 роки тому +14

    Stay healthy 🙏🏿 sir

  • @Roushankumar-ue8ji
    @Roushankumar-ue8ji 3 роки тому +6

    Ans 19.47 aayega end me plus wrong kiya h

  • @sudeshrathee922
    @sudeshrathee922 3 роки тому +17

    Thank you sir for this question

  • @GodlyKraken
    @GodlyKraken 5 років тому +52

    Thank you sir it helped me to understand very easily and Sir where is the link to find the square root of any number?

  • @binakumari262
    @binakumari262 5 років тому +15

    Amazing explained by you bro 👌👌👌👌👌👌claping for you👏👏👏👏👏👏

  • @shilpa3465
    @shilpa3465 3 роки тому +3

    Thank you so much for explanation

  • @preetkaursandhu8728
    @preetkaursandhu8728 3 роки тому +1

    Thankyou so much sir kal mara maths ka exam hai mana sara paper aap ka channel da jad kiya hai mujha tu phela kuj smaj ma he nhi tha a raha but ab a gaya thankyou very much 🙏🙏🙏🙏🙏

  • @amit80086
    @amit80086 3 роки тому +8

    I am working as PGT mathematics . Can u tell me. What type of board or instrument you are using in video.

  • @ayamsharma7519
    @ayamsharma7519 3 роки тому +4

    Link is not in the discription box for finding value of root

  • @nazimaabass1885
    @nazimaabass1885 2 роки тому +2

    Dear teacher u are the best coz u brought out the best in us.. 🥰🥰 tq

  • @rinkukumarkumar9273
    @rinkukumarkumar9273 4 роки тому +5

    Thanks sir 😃 its helpful

  • @parmjeetjangra6040
    @parmjeetjangra6040 5 років тому +7

    Thanks for solve this question

    • @dr0p277
      @dr0p277 4 роки тому

      Hahaha solve or solving? Hah

  • @mikakoreanmika2443
    @mikakoreanmika2443 5 років тому +352

    Tomorrow is my maths exam anyone also has like here😢

  • @t-series2638
    @t-series2638 3 роки тому +2

    Mandeep bhaiya bhot accha teach karte h

  • @naveendhawan3471
    @naveendhawan3471 3 роки тому +17

    Thank you sir for this wonderful explanation of question 3 . 🙏🏻🙏🏻

  • @satishkumarjaiswal6850
    @satishkumarjaiswal6850 5 років тому +5

    Sir thank-you

  • @neetuyadav6106
    @neetuyadav6106 3 роки тому +18

    Yes sir no link 2:11 PM 9-10-20 Sir since 2 Year no link given and you had told us to send it 2 years ago😂😂😂🤣🤣

  • @btsarmygirl8329
    @btsarmygirl8329 7 місяців тому +1

    Thank you so much sir finally i got this answer 🤩🤩🤩

  • @anchitaanchita4656
    @anchitaanchita4656 3 роки тому +7

    SIR THERE IS NO LINK IN DESCRIPTION BOX.

  • @saritapanwar7327
    @saritapanwar7327 5 років тому +3

    Thank you sooooooooooooooooooooo much Sir

  • @Md_Uwaish_07
    @Md_Uwaish_07 5 років тому +7

    Thanks sir,
    This is awesome ,it help us very much in my exam .... 🤗🤗🤗👍👍👍

  • @sonyaagarwal7204
    @sonyaagarwal7204 4 роки тому +1

    Sir your teaching is vey nice

  • @PoojaSharma-sk3yh
    @PoojaSharma-sk3yh 3 роки тому +2

    You ar so intelligent sir

  • @SunilKumar-ij6yh
    @SunilKumar-ij6yh 4 роки тому +5

    Sir we can do 3rd prt by parallelogram also
    Nicely explained

  • @poojasahu1030
    @poojasahu1030 5 років тому +44

    Sir AAP Rd Sharma se bhi important question

  • @shivanidabral7287
    @shivanidabral7287 2 роки тому +2

    thank you so much sir mere doubts clear krne ke liye 🥰🥰

  • @xahid7108
    @xahid7108 6 місяців тому +2

    Thank you sir ❤

  • @souravchandel8774
    @souravchandel8774 6 років тому +51

    Where is link???

    • @vinayshankwar6401
      @vinayshankwar6401 5 років тому

      True

    • @manishdagdi6804
      @manishdagdi6804 5 років тому +3

      tere ghad mai sale 8 class mai jab teacher pada rhai the tab kya kar rahatha

    • @neelamthakur3225
      @neelamthakur3225 5 років тому +1

      @@manishdagdi6804 tamij ni h

    • @neelamthakur3225
      @neelamthakur3225 5 років тому +1

      @@manishdagdi6804 mami ko bhi ease hi bolta h

    • @manishdagdi6804
      @manishdagdi6804 5 років тому +2

      @@neelamthakur3225 abe o gandu tere ku kam nahi hai kya

  • @mr.s6866
    @mr.s6866 2 роки тому +3

    Tnx sir this helped me understand the sum properly

  • @Gyansarovar5735
    @Gyansarovar5735 Рік тому

    Aaj ham khile hai is 9th me kal 8th Wale bhi khil jayenge (I say really sir) aap jaise teacher pure india me nahi mil payenge

  • @reshiwaseem890
    @reshiwaseem890 2 роки тому +2

    Math class ka app bataw sir.....
    Thank you....

  • @naveenmadaan6165
    @naveenmadaan6165 3 роки тому +4

    4:30 no link

  • @arshikagupta1736
    @arshikagupta1736 4 роки тому +8

    Plz sir made vedio on examplar maths book of 9th class

  • @nitishkr1658
    @nitishkr1658 Рік тому +2

    Thanks sir such a clear explanation 👍👍👍👌👌

  • @rishikasrivastava18
    @rishikasrivastava18 3 роки тому +2

    Thank you soo much it helps me alot

  • @daljeetkaur9831
    @daljeetkaur9831 5 років тому +16

    Just tell me that whether this ques is important or not ?? I have my maths exam on 11march and i don't want to waste time on it.........

    • @himanshusharma5721
      @himanshusharma5721 4 роки тому +7

      i think this question is not important for exam this is just under the concept question so dont worry about it.

    • @riu691
      @riu691 4 роки тому +2

      Its important

    • @ashutoshsaugan
      @ashutoshsaugan 4 роки тому

      No

    • @ashutoshsaugan
      @ashutoshsaugan 4 роки тому

      I think no

    • @shankarshinde7092
      @shankarshinde7092 4 роки тому +2

      Phehele Bolna sikho what is this just tell me whether this question is important or not?? Kuch Puchna hai tho request Karna pahiye you should can anyone plz tell me is this question is important or not?? Samjai

  • @madhubaladadi419
    @madhubaladadi419 4 роки тому +6

    in 1st part why another triangle is 5cm

    • @starky3629
      @starky3629 4 роки тому

      Coz this was isosceles triangle

    • @shailjasingh854
      @shailjasingh854 4 роки тому

      B/c they are isoceles triangle whose both side are equal

    • @hydrashrish3910
      @hydrashrish3910 4 роки тому +1

      As aeroplane is a symetrical object so both sides must equal....
      Hope you got it...

  • @saimasheikh8461
    @saimasheikh8461 Рік тому +1

    Tomorrow is my exam
    So, I am see this vidio..
    But nice explain
    Sir ke fever hai tb bhi hm jaise legend ke liye explain kr re hai 😍😍😍
    Nice sir 👍👍👍👍

    • @pokebeastx7302
      @pokebeastx7302 Рік тому

      Bro I think you have a typo, use "watching" instead of "see this video"

    • @joanna4201
      @joanna4201 Рік тому

      Good Saima 😅😍

  • @adityashroti443
    @adityashroti443 2 роки тому +4

    I am watching your first video and this is awesome 👍✌️
    Now I am confident for my 9th

  • @tanya-7889
    @tanya-7889 6 років тому +15

    Thanks sir

  • @laddoochutku
    @laddoochutku 2 роки тому +10

    Why don't you construct a diagonal in rectangle in the second part and in third too???

    • @user-ez3id7gb7n
      @user-ez3id7gb7n 2 роки тому +1

      That can be done too but it'll make the solutionn a bit harder..

    • @laddoochutku
      @laddoochutku 2 роки тому

      @@user-ez3id7gb7n Ya
      Right!

    • @shivanshclass9a712
      @shivanshclass9a712 Рік тому

      How to find that diagonal you draw? In 3rd

  • @vaibhavsrivastava8713
    @vaibhavsrivastava8713 3 роки тому +1

    East or west bhai ki padhai is the best
    Bkp zindabaad

  • @maliksaba7124
    @maliksaba7124 3 роки тому +1

    Sir where Is link

  • @nahidaparveen3955
    @nahidaparveen3955 3 роки тому +5

    Sir if I will not write approx in answer, will the examiner cross it.
    Please reply......

  • @karishmasingh2811
    @karishmasingh2811 Рік тому +2

    Thank u sir for your clear explanation🙏🙏

  • @harshitbhandari6801
    @harshitbhandari6801 Рік тому

    What is this a good teacher and he is going well and I don't miss any videos of him

  • @yanaarya5832
    @yanaarya5832 3 роки тому +2

    Sir but 4th and 5th part ki value same hai to ham last mai jab saree parts kee answer plus krengee to 4th part ka 9.00 or 5th part ka 9.00 alag alag plus hongee na or answer 28.27 ayega na

  • @thebeast-ci8fg
    @thebeast-ci8fg 3 роки тому +3

    Thanku sir for this question🙏👍

  • @yeshasree4749
    @yeshasree4749 3 роки тому +32

    Thanks for the detailed explanation sir!

  • @luckyraghav5054
    @luckyraghav5054 2 роки тому +1

    Happy Teacher's day Sir

  • @ashokbhadu574
    @ashokbhadu574 2 роки тому +1

    Thanks for the detaied explanation sir

  • @mr.creator2648
    @mr.creator2648 4 роки тому +5

    Root ki value kaise nikale

    • @himanshirohila5008
      @himanshirohila5008 2 роки тому

      By long division method which have already given by mandeep sir.

  • @ravishkumr8333
    @ravishkumr8333 3 роки тому +6

    Happy teacher's day/late ho gaya sir

  • @ffhpcgaming4393
    @ffhpcgaming4393 2 роки тому +2

    जो व्यक्ति अभी मेरी कमेंट पड़ रहा है उसके माता पिता की उम्र लंबी हो

  • @nahitkureshi7201
    @nahitkureshi7201 Рік тому +1

    Thank you sir mujhe bilkul samaj nahi a Raha tha ye long questions ap ki vedio dekh Kar Kamal ho gya thanks for sir

  • @nickhileshsunilkumar8333
    @nickhileshsunilkumar8333 2 роки тому +10

    sir 2.48 cm^2 is not the area in 1st side because 0.75 x 3.3 = 2.47 (according to the calculator)

    • @tetramate1
      @tetramate1 2 роки тому +1

      Do it on paper calculators mostly provide information thats we dont need

    • @omparkashpatidar393
      @omparkashpatidar393 2 роки тому +2

      You are wrong because this value is 0.75 × 3.31.

    • @omparkashpatidar393
      @omparkashpatidar393 2 роки тому +2

      Not this 0.75 × 3.3
      Dusaro ko galat kehana sa pehala thik sa dekha lana chahiye

  • @anitadoifode8556
    @anitadoifode8556 2 роки тому +4

    Aapki video dekhta hu tb motivation milta hai ki future mai kuch bne... Head.... Keep it up sir.... Don't stop.... 👍🥰 *STAY HEALTHY*

  • @sabedvlog2059
    @sabedvlog2059 9 місяців тому +1

    Sir good explanation app hmra schl pa aa jayeya
    Ham logo ka maths teacher pagal ha

  • @famousgamer8441
    @famousgamer8441 3 роки тому +1

    you are best teacher