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Vesna [10]
3 years ago
12

I need help on 11-13 please i need this done asap! Can someone help me out

Mathematics
2 answers:
marin [14]3 years ago
7 0
Learn this the sum of angles in a polygon is (n-2)* 180. n is the number of sides or angles in the polygon.
Alex777 [14]3 years ago
4 0
13 is 141. A octagon has 1080 degrees and if you add all the angles up you get 939 and 1080-930=141
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