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Math Help - Help me, this problem make me 'confuse'

  1. #1
    Newbie
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    Jakarta - Indonesia
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    Unhappy Help me, this problem make me 'confuse'

    I'm a new joiner, I hope I enjoy with this forum.

    I have a problem, look this picture:


    Maybe somebody can solve this with simply way? help me...
    Thnx..

    Note : AD = 8
    BC = 10
    EF = 4
    CD = .......
    Attached Thumbnails Attached Thumbnails Help me, this problem make me 'confuse'-tes.jpg  
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  2. #2
    Member Nacho's Avatar
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    Santiago, Chile
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    Don`t has more information?

    for example that triangle ACD is rectangle
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  3. #3
    Newbie
    Joined
    Nov 2008
    From
    Jakarta - Indonesia
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    ACD not a rectangle, but rigt triangle, same like BCD
    There is no other information. just like that.
    EF is perpendicular form cross of AD and BC.

    hm... it's difficult for me..
    I get this question from old book - that I have loose it
    but I remember this question.
    the information just like that.
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  4. #4
    Newbie
    Joined
    Nov 2008
    From
    Jakarta - Indonesia
    Posts
    8
    ACD not a rectangle, but rigt triangle, same like BCD
    There is no other information. just like that.
    EF is perpendicular form cross of AD and BC.

    hm... it's difficult for me..
    I get this question from old book - that I have loose it
    but I remember this question.
    the information just like that.
    Follow Math Help Forum on Facebook and Google+

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