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kolezko [41]
3 years ago
8

Helppppppp??????!!!!!!!!!!

Mathematics
1 answer:
zzz [600]3 years ago
7 0
I think the answer would be C. (btw, you should charge your phone/tablet, lol)
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Vertical angles are equal to each other, so:

x=-3x+80

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If an exterior angle of a regular polygon is 21.2° how many sides does the polygon have?
rosijanka [135]
\bf \textit{sum of all exterior angles in a polygon}\\\\
n\theta =360\quad 
\begin{cases}
n=\textit{number of sides}\\
\theta =\textit{angle in degrees}\\
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\\\\\\
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