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Thread: angles

  1. #1
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    angles

    angles-win_20161225_21_08_55_pro.jpg

    stuck on the both parts. im trying to prove |ab| is bigger than |bd| so that must mean angleADB is bigger than angleAEB
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  2. #2
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    Re: angles

    Hey markosheehan.

    What have you tried? Can you show us your working?
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  3. #3
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    Re: angles

    reference the attached diagram ...

    $\color{red}{d = e + f}$ ... why? what's that tell you about the relative measures of $\color{red}{d}$ compared to $\color{red}{e}$?

    $\color{red}{e = g + c}$ ... why? what's that tell you about the relative measures of $\color{red}{e}$ compared to $\color{red}{c}$?

    finally, does the transitive property work for inequalities?
    Attached Thumbnails Attached Thumbnails angles-angles.png  
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  4. #4
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    Re: angles

    Can you say that cause d=e+f so angel d has to be bigger than f
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  5. #5
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    Re: angles

    since each angle measure is positive, $d = e + f \implies d > e \text{ and } d > f $

    you still haven't said why $d = e + f$ ...
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  6. #6
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    Re: angles

    as they are exterior angles (sum of the interior interior angles equal the exterior angles) thanks
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