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Math Help - Measure of marked Angle

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    Measure of marked Angle

    My finals are tomorrow and I'm having trouble solving this problem. If someone will, help! Here's the link.

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    Re: Measure of marked Angle

    Quote Originally Posted by HellBunny View Post
    My finals are tomorrow and I'm having trouble solving this problem. If someone will, help! Here's the link.

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    Together they make a straight line. A straight line has \displaystyle \begin{align*} 180^{\circ} \end{align*} , so

    \displaystyle \begin{align*} 3x + x &= 180^{\circ}\\ 4x &= 180^{\circ} \end{align*}

    I'm sure you can go from here.
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    Re: Measure of marked Angle

    Answer is 45 degrees, but here's the problem. My answer sheet says 45 and 135. So sorry, just realized what to do, thanks a lot! points to you.
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