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16-12-2019
Mathematics

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The Sum of the interior angles measure of a polygon is 3,420. How many sides does the polygon have

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cromewhispere cromewhispere

16-12-2019

Answer:

21

Step-by-step explanation:

180(n-2) = 3420 so you divide each side by 180

n-2 = 19 now add 2 to both sides and you get n = 21

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