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Sum of the angle of measure of a quadrilateral. Find the value of x.

Sum of the angle of measure of a quadrilateral. Find the value of x.-example-1

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4 votes

Recall

The sum of the interior angles of a quadrilateral is;


360^0
\begin{gathered} 87+x+118+51=360^0\text{ (sum of interior angles of a quadrilateral)} \\ \end{gathered}

Collect the like terms


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User TimWolla
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