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What is the measure of the missing angle? Explain/show your work.
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What is the measure of the missing angle? Explain/show your work.

What is the measure of the missing angle? Explain/show your work.-example-1
User Nirva
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let's keep in mind this is a Heptagon, namely with 7 sides.


\underset{in~degrees}{\textit{Sum of All Interior Angles}}\\\\ S = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\[-0.5em] \hrulefill\\ n=7 \end{cases}\implies S=180(7-2)\implies S=900 \\\\[-0.35em] ~\dotfill\\\\ 125+110+95+170+155+115+z=900\implies 770+z=900\implies z=130

User Tweber
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