Angle subtended by an arc at center is twice the angle subtended anywhere else (Theorem and proof)

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  • Опубликовано: 9 сен 2024
  • Visit us at - www.risingpearl.com
    Like us at - risingpearlfans
    Friends,
    This is a Math video. This is our sixteenth webisode (WB-16) on "Series 10 - Circles".
    In this video, we will learn that the angle subtended by an arc at the center of the circle is twice the amount of angle subtended by the same arc anywhere else on the circle i.e. if an arc subtends an angle "2x" at the center of the circle, then that arc will subtend an angle "x" anywhere else on the same circle. Later in the presentation, we will prove this theorem.
    This video is suited for class-9 (Class-IX) or grade-9 kids.
    Cheers,
    Friends at Rising Pearl

Комментарии • 116

  • @harischandrapaikaray5439
    @harischandrapaikaray5439 6 лет назад +13

    Very simple to understand
    Thank you

  • @radhekrishna5863
    @radhekrishna5863 Год назад

    Let's meet here in another 10 yrs this channel would be different

  • @always.unsaid
    @always.unsaid 4 года назад +1

    It helped my for my final exam

    • @dostotussigreatho
      @dostotussigreatho  4 года назад +1

      Hi there,
      You are very welcome! I am glad you found the video helpful.
      Cheers,

  • @srishu5470
    @srishu5470 9 лет назад +2

    Good explanation

  • @pariinsan5146
    @pariinsan5146 4 года назад +1

    Thank you so much sir... You helped me a lot in my problems ... Tomorrow is my exam

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi Pari,
      You are very welcome! Thank you for sharing your feedback. I wish you the very best for tomorrow's exam.
      Cheers,

  • @dostotussigreatho
    @dostotussigreatho  11 лет назад +2

    Hi Naheed,
    That's awesome to hear! glad that the video helped you ace the test!
    Cheers,

  • @Aditya.S1
    @Aditya.S1 4 года назад +1

    Thank You So much SIR Best explanation ever

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi Aditya,
      You are very welcome! I am glad you enjoyed the video and found it helpful. Thank you for such a wonderful comment! Cheers,

  • @vandanaarshia4207
    @vandanaarshia4207 8 лет назад +1

    guys doing a great job i just came from my holidays n next day it was my exam it helped me a lot in revision of main theo

    • @dostotussigreatho
      @dostotussigreatho  8 лет назад

      Hi Vandana,
      Sounds like great timing :-) Glad you liked the video.
      Cheers,

  • @MARCOSETTAN
    @MARCOSETTAN 4 года назад +3

    Thank you so much sir this question came for our exam and i was able to write it easily

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi George, I am glad that you found the video and it helped out in the test. Hope overall test went well. Thanks very much for sharing your feedback. I very much appreciate it. Pls do check out my other videos as you may find them helpful as well. Thanks again! Cheers,

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi George,
      Pls check out new playlists that contain all videos for Class-9 Math for Numbers, Polynomials, Coordinate Geometry, Linear equations, Intro Euclid's geometry, Lines and Angles, Traingles, Quadrilaterals, Areas of Parallelograms and more. Hope you like the videos. When you get a chance, pls do share your feedback. It would be great to hear from you. Thanks! Cheers,

  • @shrishsuresh
    @shrishsuresh 11 лет назад +1

    Very well explained!! Thank you very much!

  • @STYLISH-GAMER-123
    @STYLISH-GAMER-123 Год назад

    This is good explanation kindly fast your speed

  • @maalinihema_
    @maalinihema_ 8 лет назад +2

    thnx a lot...
    helped me alot.

    • @dostotussigreatho
      @dostotussigreatho  8 лет назад

      Hi Hema,
      You are very welcome! Glad you liked the video and found it helpful. Thanks for sharing your feedback.
      Cheers,

  • @sandeepnath8848
    @sandeepnath8848 11 лет назад +1

    excellent video thanks

  • @premchandra3349
    @premchandra3349 5 лет назад

    simple and lucid

    • @dostotussigreatho
      @dostotussigreatho  5 лет назад

      Hi Prem,
      You are very welcome! Thank you for sharing your feedback. I very much appreciate it!
      Cheers,

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi Prem,
      Pls check out new playlists that contain all videos for Class-9 Math for Numbers, Polynomials, Coordinate Geometry, Linear equations, Intro Euclid's geometry, Lines and Angles, Traingles, Quadrilaterals, Areas of Parallelograms and more. Hope you like the videos. When you get a chance, pls do share your feedback. It would be great to hear from you. Thanks! Cheers,

  • @rajatkhare6697
    @rajatkhare6697 9 лет назад +1

    thank you Roy SIR!!!!!!!!!!!

    • @dostotussigreatho
      @dostotussigreatho  9 лет назад

      Hi Rajat,
      You are very welcome! Glad you liked the videos. Pls checkout all the videos.
      Cheers,

  • @sangeetabudhe5790
    @sangeetabudhe5790 6 лет назад

    Very nicely explained.. thank you so much

  • @mtalhashahzad899
    @mtalhashahzad899 8 лет назад +2

    what is meant by the angle subtended by major arc ?????

    • @dostotussigreatho
      @dostotussigreatho  8 лет назад +2

      Hi Talha,
      Please check out the following video where I have explained what is meant by "angle subtended by an arc" at any given point -
      ruclips.net/video/u_1dQFzvBeo/видео.html
      Hope that helps.
      Cheers,

  • @mehrunnisa5012
    @mehrunnisa5012 3 года назад

    Shukriya ustaz 🙏❣️

  • @vishweshwermangalapalli3137
    @vishweshwermangalapalli3137 5 лет назад

    Many thanks. Good work.

  • @sangeetharana4435
    @sangeetharana4435 5 лет назад +1

    I aced the final exam. Got 4/4 for this question

    • @dostotussigreatho
      @dostotussigreatho  5 лет назад

      Hi Sangeetha - You made my day! I am super happy to hear that you aced the finals. Congratulations!!! Cheers,

  • @dhanjeesingh5039
    @dhanjeesingh5039 5 лет назад

    Thanks

  • @jjjjjj745
    @jjjjjj745 Год назад

    Sir tussi great ho 👏

  • @yashbhardwaj8218
    @yashbhardwaj8218 7 лет назад +2

    this is very good video and also very use full thank you sir

  • @fedaaismail4055
    @fedaaismail4055 3 года назад

    Why we can't say that both A and B are on the same segment are equal

  • @cassetoinshorts
    @cassetoinshorts Год назад

    Sir aap great hi 🙏

  • @madhujaiswal9685
    @madhujaiswal9685 4 года назад

    kindly tell me which green board software do you use to write ?

  • @MathematicsFoundation
    @MathematicsFoundation 6 лет назад

    good

  • @SandeepSingh-ki7gs
    @SandeepSingh-ki7gs 3 года назад

    Sir remaining part of the circle means the part of the circle leaving the arc (or the part of the circle except the arc) ?

  • @raghavchandak10b94
    @raghavchandak10b94 4 года назад

    Thanks sir

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi, You are very welcome! I am glad you liked the video and found it helpful. Cheers,

  • @dostotussigreatho
    @dostotussigreatho  11 лет назад +1

    Hi Ashish,
    Thanks, glad you liked the video.
    Cheers,

  • @__shashwat__
    @__shashwat__ 6 лет назад

    Thanq sir

  • @vandanaarshia4207
    @vandanaarshia4207 8 лет назад +2

    guys doing a great job. keep it up

    • @dostotussigreatho
      @dostotussigreatho  8 лет назад

      Hi Vandana,
      Thanks for those kind words. I appreciate it.
      Cheers,

  • @devilking1366
    @devilking1366 5 лет назад

    sir a median divides a triangle in two triangles of equal area sir a triangle of sides 4,5,6.5.(ABC) it's median AD sir i have calculated it's area first by Herons formula then by drawing perndicular AE and calculated area of its two triangles which is not same as i have calculated by Herons formula why sir

    • @dostotussigreatho
      @dostotussigreatho  5 лет назад

      Hi, let us assume that there is a triangle with vertex A at the top and base side BC. Now, we identify the mid-point of BC say D. Then we join A and D. Now, we have two triangles - ABD and ACD. Also, BD = DC. Now, let us drop AE perpendicular to BC. Area of triangle ABD = 1/2 . AE . BD. Area of triangle ACD = 1/2 . AE . DC. Since BD = CD (D is mid-point of BC), both areas must be EQUAL. Can you pls check your work and try again? Cheers,

  • @dhf335434
    @dhf335434 10 лет назад

    a really very good video

  • @hritichandra4116
    @hritichandra4116 7 лет назад +16

    I recommend you not to do that zoom out and in all the time
    Other wise Its a very helpful video.

  • @sandeepnath8848
    @sandeepnath8848 11 лет назад +1

    nice video thanks

  • @asifgammer100
    @asifgammer100 10 лет назад +1

    thanks for this video
    d=D

  • @kalpnaraj3170
    @kalpnaraj3170 5 лет назад

    Nice

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi Kalpna,
      Pls check out new playlists that contain all videos for Class-9 Math for Numbers, Polynomials, Coordinate Geometry, Linear equations, Intro Euclid's geometry, Lines and Angles, Traingles, Quadrilaterals, Areas of Parallelograms and more. Hope you like the videos. When you get a chance, pls do share your feedback. It would be great to hear from you. Thanks! Cheers,

  • @raunak2116
    @raunak2116 5 лет назад +5

    no need to zoom to much........

  • @uditsharma5545
    @uditsharma5545 8 лет назад +2

    Thank you very much , it helped me a lot

    • @dostotussigreatho
      @dostotussigreatho  8 лет назад

      Hi Aditya,
      You are very welcome. Glad you liked the video and found it helpful! Please do check out some of the other videos as you may find them helpful too.
      Cheers,

  • @khushiyadhungel7496
    @khushiyadhungel7496 7 лет назад +1

    aap isko experimentally verify kar de te to achha hota?

  • @vijendrachauhan2174
    @vijendrachauhan2174 4 года назад

    Thanku

  • @sangeetharana4435
    @sangeetharana4435 5 лет назад

    Thank you soooooooooooooooooooooooooooooooooooooooooooooooo much

    • @dostotussigreatho
      @dostotussigreatho  5 лет назад

      Hi Sangeetha - You are very welcome! Pls check out my other videos and share your feedback on those too as and when you get to watch them. Thanks again for the wonderful comment. Cheers,

  • @sakshisoni3366
    @sakshisoni3366 8 лет назад +1

    thanku sir

    • @dostotussigreatho
      @dostotussigreatho  8 лет назад

      Hi Sakshi,
      You are very welcome! Glad you liked the video and found it helpful. Please do check out some of the other videos as well as you may find them helpful too! Please share your feedback.
      Cheers,

  • @vandanaarshia4207
    @vandanaarshia4207 8 лет назад +3

    thanks to roy sir

    • @dostotussigreatho
      @dostotussigreatho  8 лет назад

      Hi Vandana,
      You are very welcome! Glad you liked the video and found it helpful!
      Cheers,

  • @kaif2092
    @kaif2092 5 лет назад +1

    Please speak in equal wave

  • @balpreetkaur1254
    @balpreetkaur1254 6 лет назад +1

    Very nice, thank you sir. Its very helpful

  • @chandniarora4587
    @chandniarora4587 6 лет назад

    well explained

  • @ronakkumarsahu1220
    @ronakkumarsahu1220 4 года назад

    Sir it is visible plz don't zoom much because full screen is not visible

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi Ronak,
      Thanks for that feedback. Will keep that in mind for future videos.
      Cheers,

  • @sumanag7343
    @sumanag7343 3 года назад

    Pls anyone say for which class it comes means in which class we learn this because in my exam it had came and i am in 19th but for us there is not therroems like this so asked pls anyone say

    • @sumanag7343
      @sumanag7343 3 года назад

      Sry 10th

    • @dostotussigreatho
      @dostotussigreatho  3 года назад

      @@sumanag7343 Hi Sumana,
      It will depend on your class and board. For CBSE, this is typically covered in Class-9.
      Cheers,

  • @daniegeorge3007
    @daniegeorge3007 7 лет назад +1

    fantastic

  • @rajinderkaur3993
    @rajinderkaur3993 7 лет назад +1

    hi, plz post a video of chapter surface areas and volume. ..

  • @dineshking8230
    @dineshking8230 6 лет назад

    Ok

  • @subhanshuupadhyay6448
    @subhanshuupadhyay6448 5 лет назад +3

    Bhai video ko itna zoom in & zoom out kyo karte ho ande nhi he yaar ham🤓🤓🤓🤓🤓

  • @salahae3500
    @salahae3500 10 лет назад

    really amazing.......!
    may god bless u!

  • @abadhudoliya6624
    @abadhudoliya6624 6 лет назад

    sir to iska measure kaise karenge

  • @msd6015
    @msd6015 7 лет назад +6

    This video is a bit long.
    Anyways it was easy to understand.
    Thanks a lot.
    Anyways you say a lot of times "Doston"😀😁😂

  • @sakshisoni3366
    @sakshisoni3366 8 лет назад +1

    okkkkk

  • @parulsingh2073
    @parulsingh2073 7 лет назад +1

    Thanks, this helped me to understand the theorem very much :)

  • @abdullahyusuf8438
    @abdullahyusuf8438 7 лет назад +6

    it is cool! NOT!!!!

  • @amitsalaria4364
    @amitsalaria4364 6 лет назад

    Please show it practically

  • @ashokhgutgnchaurasiya4916
    @ashokhgutgnchaurasiya4916 7 лет назад +2

    this video is bery good beacause its presentation is exilent

  • @vaishnavvs8313
    @vaishnavvs8313 7 лет назад +1

    nice

  • @bhavyaagrawal424
    @bhavyaagrawal424 4 года назад

    Sir in exam should we have to prove in all 3 conditions?

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi Vishad,
      Yes. If you have the time, then you should prove the theorem for all 3 scenarios. This is because the arc can be a minor arc, semi-circle or major arc. Hope it helps!
      Cheers,

  • @caramelswirl9508
    @caramelswirl9508 7 лет назад +1

    nyc vid . can u plz tell me ur name

  • @balpreetkaur1254
    @balpreetkaur1254 6 лет назад +2

    Please don't zoom out

  • @PoojaYadav-fg8pv
    @PoojaYadav-fg8pv 4 года назад

    Solve this problem jaldi plz sir
    Angle subtended by an arc of a circle at its center and at any point on the remaining part of the circle.
    1. Objective 2.procedure 3.result

  • @bhagwangowda5038
    @bhagwangowda5038 5 лет назад

    M=mental
    A=Attack
    T=To
    H=Healthy
    S=Student

  • @RajeshKumar-fo3tt
    @RajeshKumar-fo3tt 7 лет назад +4

    you are big fool can't you proof theorem 3 and4 using RHS congruency

  • @morjithmattapalli9531
    @morjithmattapalli9531 4 года назад

    Put the vedio in 1.25 x speed it will be perfect

  • @raghvendrachauhan9149
    @raghvendrachauhan9149 7 лет назад +1

    very bad bilkul smjh nhi aaya Baar Baar dostoo mt bolo

  • @shobhitseth7558
    @shobhitseth7558 6 лет назад

    Aap ki sabhi videos acchi Hoti h but this is bakwas

  • @blitzeral8620
    @blitzeral8620 7 лет назад +1

    thanks

  • @mtalhashahzad899
    @mtalhashahzad899 8 лет назад +2

    what is meant by the angle subtended by major arc ?????

  • @labeebasultana3617
    @labeebasultana3617 6 лет назад

    Nice

  • @RetroGamer10000
    @RetroGamer10000 11 лет назад +1

    thanks

  • @shreyathakur4101
    @shreyathakur4101 5 лет назад

    Thanks

    • @dostotussigreatho
      @dostotussigreatho  5 лет назад

      Hi Shreya,
      You are very welcome! Glad you liked the video and found it helpful. Please take a look at my new website -
      www.risingpearl.com
      website; review it and let me know what you think. Cheers,

    • @dostotussigreatho
      @dostotussigreatho  4 года назад

      Hi Shreya,
      Pls check out new playlists that contain all videos for Class-9 Math for Numbers, Polynomials, Coordinate Geometry, Linear equations, Intro Euclid's geometry, Lines and Angles, Traingles, Quadrilaterals, Areas of Parallelograms and more. Hope you like the videos. When you get a chance, pls do share your feedback. It would be great to hear from you. Thanks! Cheers,