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Math Help - Finding Missing Triangle Lengths...

  1. #1
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    Finding Missing Triangle Lengths...

    See attached..all I know is that each tick mark represents 6...

    Thanks all the help I could get would be great!!!
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  2. #2
    Member Danshader's Avatar
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    well the line passing from one point through the triangle to the base of another side can be calculated using pythagoras theorem

    12^2 - 6^2 = (x+y)^2
    x+y = sqrt(108)

    the gravity point (where all the internal lines meet) is always 2/3 from the apex or 1/3 from the base

    therefore

    y = (2/3)sqrt(108)
    x = (1/3)sqrt(108)
    Last edited by Danshader; March 30th 2008 at 01:18 PM. Reason: sorrie my mistake o.o"
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  3. #3
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    Thanks for the help!

    Thanks for the help...have a nice day!
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  4. #4
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    Red face More Problems!!

    Here is another fun one!

    Look at attached...@!@

    The tick marks are 9...

    Thanks

    Best,

    Zach
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  5. #5
    Member Danshader's Avatar
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    lol xD same thing just change all the 6 to 9 and all the 12 to 18
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  6. #6
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    Exclamation

    What I have been getting is: (x + y)^2 + 81 = 18^2...am I right...if so...hmm
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  7. #7
    Member Danshader's Avatar
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    yup thats right xD just continue the other steps

    (i made a mistake above sorrie it should be 12^2 - 6^2 instead of adding them up)
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  8. #8
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    Exclamation Correction!

    18^2 - 9^2 = (x +y)^2

    x + y = √(243)
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  9. #9
    Member Danshader's Avatar
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    nono o.o"

    it is

    18^2- 9^2 = (x+y)^2
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  10. #10
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    Lightbulb

    got it!

    Hey so the final answer is : .....one momento...

    x = 1/3√(243)

    y = 2/3√(243)

    RIGHT?!?

    Cool. Thanks..
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  11. #11
    Member Danshader's Avatar
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    xD eres correcto bravo
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  12. #12
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    Shank You Very Much!!!
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  13. #13
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    Smile More!! Yaya!!

    Check dis out..dawg!

    okay..look at attached!
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  14. #14
    Member Danshader's Avatar
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    lol they already given you the length xD

    the answer is x = (1/3)(18)
    y = (2/3)(18)
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  15. #15
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    Angry

    Hey I need to find the area of THIS WHOLE TRIANGLE..
    here is what I came up with:

    36 + (2/3√(108) + 1/3√(108))^2 = 12^2

    ?
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