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Math Help - largest angle

  1. #1
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    largest angle

    largest angle-untitled.bmp

    In the figure above the difference between the largest angle and the smallest angle is how many degree?

    A 30
    B 60
    C 90
    D 120
    E 180

    Whats the steps to getting the answer please help thanks. ;]
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by aznmartinjai View Post
    Click image for larger version. 

Name:	untitled.bmp 
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ID:	7376

    In the figure above the difference between the largest angle and the smallest angle is how many degree?

    A 30
    B 60
    C 90
    D 120
    E 180

    Whats the steps to getting the answer please help thanks. ;]
    you want the difference between the largest and smallest angle. in other words, you want to find 3x - x = 2x

    so find x and we will know the answer.

    the angles in a triangle add up to 180 degrees, thus:

    x + 2x + 3x = 180

    can you find x?
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  3. #3
    MHF Contributor red_dog's Avatar
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    The sum of all angles is 180^{\circ}

    So, x+2x+3x=180^{\circ}\Rightarrow 6x=180^{\circ}\Rightarrow x=30^{\circ}

    Now, find the angles and the difference.
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