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  1. #1
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    Arrow geometry

    HELP [LEFT]A 12 foot ladder leans against the side of a building. The foot of the ladder is 5 feet from the wall of the building. Determine the height above the ground where the top of the ladder touches the wall.
    Last edited by amathgizzard; January 22nd 2009 at 02:00 PM.
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    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by amathgizzard View Post


    12+5=
    144+25=194
    do you know what Pythogaras' theorem says?

    it says a^2 + b^2 = c^2

    where (in a right triangle) a and b are the legs of the triangle and c is the hypotenuse, that is, the longest side (in this case, it is the length of the ladder)
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  3. #3
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    ok I understand what ur sayin, but what is the answer 194 squared
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    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by amathgizzard View Post
    ok I understand what ur sayin, but what is the answer 194 squared
    no.

    if you understood what i said you should see that what you need to do is solve

    a^2 + 5^2 = 12^2 for a
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  5. #5
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    119 is the answer~~~
    Thanks a bunch
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    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by amathgizzard View Post
    119 is the answer~~~
    Thanks a bunch
    no, \sqrt{119} is the answer
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  7. #7
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    THANK YOU,YOU R REALLY SMART!!!!
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