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

asked May 21, 2023 91.1k views

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4 votes

Recall

The sum of the interior angles of a quadrilateral is;

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

Collect the like terms

TimWolla answered May 25, 2023

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