Quadrilaterals L- 4 | Mid Point Theorem & Converse | Proof | Class 9 | Arsh Ma’am | BYJU'S

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  • Опубліковано 16 гру 2024

КОМЕНТАРІ • 56

  • @BYJUSClass910
    @BYJUSClass910  Рік тому +4

    Hello kids! Check your understanding of the Quadrilaterals chapter by answering these 5 quick questions in the form: forms.gle/wgNDbNijsWhEoAfQA

  • @Dhinchak_venu
    @Dhinchak_venu 9 місяців тому +2

    13:33 If one pair of opposite sides are equal then it is known as Trapezium 14:35

    • @Ishaanagastya
      @Ishaanagastya Місяць тому +1

      baka! if the opposite sides are equal then how is it a trapezium, by the statement given by mam it is proved that it is a parallelogram or rectangle or square etc.. visualize to understand. BAKA!😅😂

  • @astha--
    @astha-- Рік тому +17

    Marvelous explanation mam😄
    🔴 HOMEWORK-
    IF PQ=7CM, CP=CQ=3.5cm( SINCE, C IS MIDPOINT)
    SIMILARLY,
    PB=BR=4.5cm
    AND, QA=AR=4cm
    BY THEOREM: IF MIDPOINTS OF THREE SIDES OF TRIANGLE ARE JOINED FOUR SMALLER TRIANGLES ARE CONGRUENT,
    IN TRIANGLE ABC,
    AB=CP=3.5cm
    BC=QA=4cm
    CA=BR=4.5cm
    PERIMETER OF TRIANGLE= SUM OF ALL SIDES...
    HENCE, PERIMETER OF TRIANGLE ABC= 4+4.5+3.5=12cm(answer)

  • @TanmayAsija
    @TanmayAsija Рік тому +5

    ->Home Work Question
    "The perimeter of the Triangle ABC is 12 cm, due to Mid-Point Theorum"
    -> This Class Actually made MPT Very Easy and helped me a lot

  • @suganyav9219
    @suganyav9219 Рік тому +4

    Hw
    Given : triangle pqr
    C is the midpoint of pq
    B is the midpoint of pr
    A is the midpoint of qr
    Pq=7cm
    Qr=8cm
    Pr=9cm
    To prove :perimeter of triangle abc
    Proof
    Cb=1/2qr(by midpoint theorem)
    Cb=1/2*8=4cm
    Ca =1/2pr
    Ca=1/2*9=4.5cm
    Ba=1/2pq
    Ba=1/2*7=3.5cm
    Perimeter of triangle abc
    4+3.5+4.5=12 cm

  • @AjayPatil-eh2lc
    @AjayPatil-eh2lc 11 місяців тому +16

    Mam wrote BE =CD in proof of converse MPT (I think by mistake)the right one is BE || CD,so don't get confuse.

    • @Verstappen_betterthan_hamilton
      @Verstappen_betterthan_hamilton 10 місяців тому

      Yep you are right, it isn't equal but only parallel therefore it is not a parallelogram

    • @Verstappen_betterthan_hamilton
      @Verstappen_betterthan_hamilton 10 місяців тому +1

      Ma'am didn't give full explanation, auctually since E is mid point of AB it mean AE = EB and since we already know that AE = CD (PROVED BY CPCT EARLIER) we can can EB is = DC and parallel therefore since one pair of sides is equal and parallel, we can say that Quad EBCD is a Parallelogram. I hope that clears any confusion.

  • @sciencefacts3711
    @sciencefacts3711 Рік тому +2

    IF PQ = 7CM THEN AB = PQ/2
    Therefore AB = 3.5
    QR = 8CM THEN CB = QR/2
    THEREFORE CB = 4
    PR = 9CM CA = PR/2
    THEREFORE CA = 4.5
    NOW PERIMETER OF ∆ABC = AB+BC+CA
    PERIMETER OF ∆ABC = 3.5+4+4.5
    PERIMETER OF ∆ABC = 12CM

  • @shellve-v4s
    @shellve-v4s Рік тому +2

    The answer of homework questions is
    12 cm is the perimeter of triangle ABC
    Thankyou so much for explaining this theorem easily

  • @PallaviRaj19
    @PallaviRaj19 Рік тому +5

    Mam I am Pallavi Raj
    Thank you mam for this amazing session and make this theorem halwa theorem 😇😀😀
    🔴HOMEWORK QUESTION🔴
    Given - 🔺️PQR , A, B and C are mid points and PQ is 7 cm , QR is 8 cm and PR is 9 cm.
    To find - perimetre of 🔺️ABC
    ➡️
    By MPT
    CB = 1/2QR = 4cm
    BA = 1/2PQ = 3.5cm
    AC = 1/2RP = 4.5cm
    Perimeter of 🔺️ABC = CB+BA+AC
    =4cm+3.5cm+4.5cm
    =12cm

  • @monalishanayak2113
    @monalishanayak2113 Рік тому +5

    Mam please make a lecture on surface area and volume class 9th

  • @ujjwal8375
    @ujjwal8375 Рік тому +2

    Sh maan I live you as a student pls aap har video me padhaiye very very nice explaination

  • @VeerSingh-u7c
    @VeerSingh-u7c 2 дні тому

    Mam sare ch ka revision karaiye ❤

  • @RekhaKumari-yy1yf
    @RekhaKumari-yy1yf Рік тому +1

    Hello mam
    I am Shagun
    Perimeter of triangle=a+b+c
    where a=4cm , b=3.5cm and c=4.5 cm
    That's why the perimeter will be 12cm ....….

  • @dakshpratapmeena4263
    @dakshpratapmeena4263 3 дні тому

    Thank you mam

  • @harinarayanmeena9381
    @harinarayanmeena9381 11 місяців тому

    Thank you mam this video is very helpful

  • @suganyav9219
    @suganyav9219 Рік тому +2

    ❤ amazing class mam

  • @SomaMishra-jw5cg
    @SomaMishra-jw5cg Рік тому +1

    Amazing Class ma'am

  • @sauravshaw9140
    @sauravshaw9140 11 місяців тому

    Can you make one shot of theoram on area

  • @creativity.ofshreya2710
    @creativity.ofshreya2710 9 місяців тому +1

    Legends watching one day before exam

    • @babysingha5127
      @babysingha5127 9 місяців тому

      Tomorrow is my exam so I am watching now 🤣

    • @aayush13240
      @aayush13240 2 місяці тому

      Jiske exam me na ho. be like:
      Oh my goodness 🤯💯💥🔥👑😜🥳

  • @rambachanrambachan5433
    @rambachanrambachan5433 Рік тому +1

    Very very very nice explanation 😊

  • @gavya99
    @gavya99 Рік тому +1

    Perimeter of Triangle ABC is 12cm
    Thank you ma'am video was really helpful

  • @Paswan-tnq
    @Paswan-tnq Рік тому +3

    Mam thanku YOU ARE A SO CUTE MAM😘😘😘😘😘😘😘😘😘

  • @Sushantakumarpanda1978
    @Sushantakumarpanda1978 11 місяців тому

    Crystal clear mam

  • @laxmibesoya8781
    @laxmibesoya8781 10 місяців тому +1

    Maam you are so cute ❤

  • @maafilms8448
    @maafilms8448 Рік тому

    the perimeter or triangle abc equal 12

  • @nallathambid5707
    @nallathambid5707 Рік тому +1

    Thanks a lot mam

  • @prathimadmello9602
    @prathimadmello9602 Рік тому

    Yes😮😊😊😊😊

  • @SukhmanderSingh-dy2rx
    @SukhmanderSingh-dy2rx Рік тому +1

    Mam pls teach class 10

  • @babysingha5127
    @babysingha5127 9 місяців тому

    Ma'am aren't you teaching us in Class 10?

  • @laxmibesoya8781
    @laxmibesoya8781 10 місяців тому

    Maam I have a doubt

  • @nithinnithin9425
    @nithinnithin9425 Рік тому +2

    HELLO MAM
    Pq=7cm
    Qr=8cm
    Pr=9cm
    Proof
    Cb=1/2qr(by midpoint theorem)
    Cb=1/2*8=4cm
    Ca =1/2pr
    Ca=1/2*9=4.5cm
    Ba=1/2pq
    Ba=1/2*7=3.5cm
    Perimeter of triangle abc
    4+3.5+4.5=12 cm

  • @Ayushi11325
    @Ayushi11325 Рік тому

    Given :
    PQ=7cm
    QR=8cm
    PR=9cm
    Since,
    PQ=7cm
    PC=CQ=3.5cm
    QR=8cm
    QA=AR=4cm
    PR=9cm
    PB=BR=4.5cm
    PC=AB
    PB=CA
    QA=CB
    In ∆ABC
    AB+CA+CB=Perimeter of ∆
    3.5+4.5+4=12cm
    Perimeter of ∆ ABC is 12 cm

  • @surajm344
    @surajm344 11 місяців тому +1

    toooo lag tooo slow my teacher completed in 20min but u took 1hr omg , but u teach good

  • @creatively349
    @creatively349 Рік тому +1

    12 cm

  • @okinder-j4q
    @okinder-j4q 10 місяців тому

    Mam hello

  • @anilshrivas6104
    @anilshrivas6104 Рік тому

    Mam I am new my name is simran shrivas

  • @nagarajningappa6490
    @nagarajningappa6490 20 днів тому

    Mam u are pretty and beautiful

  • @rampal_shing_444
    @rampal_shing_444 Рік тому

    Thankyou mam

  • @anilshrivas6104
    @anilshrivas6104 Рік тому

    Hii mam

  • @tharabhaiffrider1
    @tharabhaiffrider1 Рік тому

    😅

  • @VeerSingh-u7c
    @VeerSingh-u7c 2 дні тому

    😂🎉

  • @gaurbrothers2223
    @gaurbrothers2223 10 місяців тому

    😂🎉🎉😢😮

  • @savitribai489
    @savitribai489 10 місяців тому

    Hello mam l am lete

  • @sherlindsouza890
    @sherlindsouza890 Рік тому

    So hardd

  • @prathimadmello9602
    @prathimadmello9602 Рік тому

    Yes😮😊😊😊😊