Find the value of y.

asked Dec 18, 2023 23.7k views

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First let find the sum of all the interior angles of the polygon

$\begin{gathered} 121+130+145+180-2y+119+180-y=180\cdot4 \\ 875-3y=720 \\ 3y=875-720=155 \\ y=(155)/(3)=51.7 \end{gathered}$

Jcoll answered Dec 23, 2023

by Jcoll

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