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Find the value of the misssing variables im pretty sure the answer is either a or c

Find the value of the misssing variables im pretty sure the answer is either a or-example-1

1 Answer

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the sum of the internal angles of the 4-sided polygon is 360, therefore


\begin{gathered} m\angle D+m\angle G+m\angle F+m\angle E=360 \\ m\angle D+m\angle G+64+119=360 \\ m\angle D+m\angle G+183=360 \\ m\angle D+m\angle G+183-183=360-183 \\ m\angle D+m\angle G=177 \end{gathered}

then


m\angle D=y=116
m\angle G=z=61

answer: a. y = 116° and z = 61°

User James McKeown
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