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Natasha_Volkova [10]
3 years ago
7

Geometry math question please help

Mathematics
1 answer:
Umnica [9.8K]3 years ago
3 0
You doing virtual school too
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In the regual nonagon shown, what is the measure of angle x?
andre [41]
The sum of the interior angles of a polygon is (n-2)*180, n being the number of sides.
a nonagon has nine sides, so the total of interior angles is (9-2)*180=7*180
this is a regular nonagon, so each interior angle has the same degrees:
7*180/9=7*20=140
the exterior angle=180-the interior angle=180-140=40
40 is the correct answer.
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