Quadrilateral having both pairs of opposite angles equal means Parallelogram (Theorem and Proof)

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  • Опубликовано: 3 ноя 2024

Комментарии • 22

  • @harishvarakaash
    @harishvarakaash 9 лет назад +5

    You are the best teacher....you teach the sums very easy......tq so much i was not able to understand this sum...but after this video i got it in a second...i also subscribed you..tq soo much....

    • @dostotussigreatho
      @dostotussigreatho  9 лет назад +4

      Hi Akaash,
      Thanks for those kind words. I very much appreciate it. Glad you found the videos helpful! Pls check out all the videos!
      Cheers,

    • @harishvarakaash
      @harishvarakaash 9 лет назад +3

      Ok

  • @mustaqsheikh3877
    @mustaqsheikh3877 5 лет назад

    You are great sir aap bahut acche Se Samjha Te Ho

    • @dostotussigreatho
      @dostotussigreatho  5 лет назад

      Hi Mustaq, You are very welcome! Thank you for sharing such a wonderful comment. I very much appreciate it. Cheers,

  • @99-shriyanshusekhardwari22
    @99-shriyanshusekhardwari22 7 лет назад

    out standing...........

  • @dostotussigreatho
    @dostotussigreatho  12 лет назад

    Hi,
    Great question! Thanks for asking.
    We only know that ABCD is a quadrilateral with ∠A = ∠C and ∠B = ∠D. Based on that, can we prove that both triangles ABC and ADC are congruent?
    NO, we can't. So, we proceed the way we discussed in the video.
    Now, if there was a way to prove both triangles are indeed congruent based on what is given, then what you say is right.
    Hope it answered your question.
    Cheers,

  • @himayan5495
    @himayan5495 7 лет назад +3

    at 4:30 you say diagonal of a quadrilateral divides it into two congruent triangles but diagonal of a parallelogram only divides it into two congruent triangles....so its wrong

  • @dipesharyan4917
    @dipesharyan4917 5 лет назад

    Sir if area and perimeter of right angle triangle is given than how to find sides of triangle

    • @dostotussigreatho
      @dostotussigreatho  5 лет назад

      Hi Dipesh, Thanks for your question. I have posted a new video answering your question. Pls check out it at
      ruclips.net/video/nGcPnQnqtqU/видео.html
      Hope it helps answer your question! Cheers,

  • @AnitaSingh-hl3pe
    @AnitaSingh-hl3pe 8 лет назад +1

    if their are three equal angles in a quadrilateral it is a parallelogram. Yes or No? tell me the reason please.

  • @santoshpandey6977
    @santoshpandey6977 7 лет назад

    Very good Sir thanks sir for using both language

  • @sahildogra5235
    @sahildogra5235 5 лет назад

    Wah Wah

  • @HIMANSHIjangid_vlogs
    @HIMANSHIjangid_vlogs 4 года назад +1

    Mujhe ak question send karu to aap mujhe uska answer send kar doo

  • @dimpalsharma3191
    @dimpalsharma3191 4 года назад

    sir your voice is be like a hritik rohsan

  • @iwon6078
    @iwon6078 4 года назад

    Heey!! Its nice you explained well but the main problem is please improve the way you speak , when the video started i think it is some another language so hope you got what i am trying to say, you stretch the words which destroy the ability for others to understand!!

  • @dostotussigreatho
    @dostotussigreatho  12 лет назад

    You are very welcome! Yes, please let us know what questions do you have.
    Cheers,

  • @thebaes1541
    @thebaes1541 9 лет назад +1

    hi

  • @99-shriyanshusekhardwari22
    @99-shriyanshusekhardwari22 7 лет назад

    I beg to state that you are saying a lot of things Extraordinarily....plzzz sudharia ese