What is the approximate measure of exterior angle B in the polygon?

asked Jul 11, 2023 148k views

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Given

The sum of the exterior angles of a polygon is 360 degrees.

$\begin{gathered} 9x+3+8x+9x+5+5x+4=360 \\ 31x=360-12 \\ 31x=248 \\ x=11.22580 \end{gathered}$

Now to find B

$\begin{gathered} 9x+3 \\ 9(11.2258)+3 \\ =104.0322 \end{gathered}$ The final answerOption B
$\begin{gathered} appoximately \\ 104^0 \end{gathered}$

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