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16 votes
A polygon has 7 sides. The interior angle measures are 131°, 119°, 125°, 133°, 125°, 138°, and x°. Find the value of x.

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User Shaun Mathew
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1 Answer

13 votes
13 votes
Polygons with 7 sides have a sum of interior angles of 900, so
900- 131-119-125-133-125-138 = 129

Answer:
x = 129
User Danielorn
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