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Math Help - [SOLVED] help with difficult geometry problem

  1. #1
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    [SOLVED] help with difficult geometry problem

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    Last edited by oohhoohh; February 8th 2010 at 07:57 AM.
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  2. #2
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    Quote Originally Posted by oohhoohh View Post
    - angle EAB is a right angle
    - line AC and line AD trisect angle EAB
    - line EA = 24
    - line AB = 10

    find the length of line AD

    ...
    1. Determine the angle at E:

    \tan(E)=\frac{10}{24}

    2. Now you know all interior angles of the triangle EDA. Use Sine rule to calculate the length of AD.
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  3. #3
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    if you don't know sine rule yet:

    draw a line from A perp to EB, call that intersection F
    get angle E or angle B
    then get the length of AF
    Also get angle ADB
    thus you should know how to get AD
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