Congruent legs and base angles of isosceles triangles | Congruence | Geometry | Khan Academy

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  • เผยแพร่เมื่อ 11 ม.ค. 2025

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  • @Z-eng0
    @Z-eng0 3 หลายเดือนก่อน

    Another bonus about this is that in both cases we can also prove that the side AD does 3 things, bisects

  • @Deboned_butter
    @Deboned_butter 2 ปีที่แล้ว +3

    On the second equation, we can also use the AAA axiom:
    Given: m

    • @rosenator8797
      @rosenator8797 2 ปีที่แล้ว

      Be careful that the AAA axiom could prove only that the shapes are similar as the angles measure don’t relate to the lengths of sides

    • @Z-eng0
      @Z-eng0 3 หลายเดือนก่อน

      Exactly that's why I always think of it that you need to know that there's at least 1 side that's congruent, to know for certain they're congruent triangles, which is why ASA is the same as AAS, it's basically 3 angles and a side since if 2 angles are congruent the third will definitely be congruent as well

  • @seanseeley7150
    @seanseeley7150 9 ปีที่แล้ว +16

    iSoSceleS
    when he mentioned he forgets how to spell that word,
    i remembered i forget about the SSS law
    if you look at the word iSoSceleS like this, you remember it has 3 S's and that reminds me of the SSS law!

  • @nfskull9900
    @nfskull9900 3 ปีที่แล้ว +4

    This is my homework video anyone else?

  • @joslynlewis417
    @joslynlewis417 2 ปีที่แล้ว

    m

  • @GoodGuyCzy
    @GoodGuyCzy 6 ปีที่แล้ว +6

    Well look's like someone will not pass today at math class

    • @Mr.Bye06
      @Mr.Bye06 2 ปีที่แล้ว

      yea we all know who it is......... its you

  • @albertmendoza1468
    @albertmendoza1468 6 ปีที่แล้ว

    7:00 we can also use an angle bisector which bisects angle BAC right?

    • @apa374
      @apa374 5 ปีที่แล้ว

      Albert Mendoza no

    • @deepaligothe5202
      @deepaligothe5202 3 ปีที่แล้ว

      Albert Mendoza, Yes

  • @hetimperley
    @hetimperley 12 ปีที่แล้ว +2

    He means that he needs as many brain cells as khanacademy's brain.

  • @cocoliscious7841
    @cocoliscious7841 10 ปีที่แล้ว

    Do you have a vid about Functions ?

  • @NebulusVoid
    @NebulusVoid 3 ปีที่แล้ว

    asin(AD / AC) = ACD = asin(AD / AB) = ABD, AC = AC

  • @makaylahall2664
    @makaylahall2664 3 ปีที่แล้ว

    What do I do if only one side of the triangle has an indicator (aka the little line on the side that determines if a side is congruent)
    Wasn't sure what it was called

    • @NebulusVoid
      @NebulusVoid 3 ปีที่แล้ว

      You just look at it and try and see if they look the same length

  • @priyajain7475
    @priyajain7475 7 ปีที่แล้ว

    in one of my sum its vertical triangle is given which is 45° ..and both legs are of 5 cm..need to construct triangle .pls help

  • @keonarandolph7849
    @keonarandolph7849 9 ปีที่แล้ว +6

    dont understand it still.

    • @yeagerkid
      @yeagerkid 8 ปีที่แล้ว

      Which part don't you understand?

    • @bambiii787
      @bambiii787 2 ปีที่แล้ว

      @@yeagerkid the math part

    • @yeagerkid
      @yeagerkid 2 ปีที่แล้ว

      @@bambiii787 fair enough

  • @KwuajaeGotTaste
    @KwuajaeGotTaste 4 ปีที่แล้ว +1

    ACD sounds like a disease.

  • @Megamind21st
    @Megamind21st 11 ปีที่แล้ว

    is your pic the rock.

    • @adityasaha6508
      @adityasaha6508 7 ปีที่แล้ว

      SkipTube Do you not know how to reply to a comment?

  • @itssphinx9822
    @itssphinx9822 6 ปีที่แล้ว

    sss doesnt prove congruency it porves similarity

  • @MK-xk3dp
    @MK-xk3dp 4 ปีที่แล้ว

    acab!