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Math Help - which is greater col a or col b

  1. #1
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    which is greater col a or col b

    [IMG]file:///C:/Users/Neo/AppData/Local/Temp/moz-screenshot.jpg[/IMG]

    Col A: AB
    Col B: BC
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  2. #2
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    e^(i*pi)'s Avatar
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    Quote Originally Posted by bluffmaster.roy.007 View Post
    [IMG]file:///C:/Users/Neo/AppData/Local/Temp/moz-screenshot.jpg[/IMG]

    Col A: AB
    Col B: BC
    If we drop a perpendicular from B to the midpoint of AC which I will call D we can treat the left triangle as a right-angled triangle with hypotenuse AB

    cos(30) = \frac{\sqrt{3}}{2} = \frac{Adjacent}{Hypotenuse}

    The adjacent is AD = \frac{1}{2}AC = 3

    Once you know AC you can find out BC using the cos rule
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  3. #3
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    Exclamation

    Quote Originally Posted by bluffmaster.roy.007 View Post

    Col A: AB
    Col B: BC
    Unfortunately, since they give us only one angle and one side, we cannot conclude much of anything -- unless we assume that the figure is "to scale", which usually you are not supposed to.
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