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OpenStudy (anonymous):
A polygon has 11 sides. What is the sum of the measure of the interior angles of the polygon? A. 1800° B. 1620° C. 1440° D. 1980°
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OpenStudy (anonymous):
B. 1620
OpenStudy (anonymous):
thanks so much :)
OpenStudy (anonymous):
Welcome! (:
OpenStudy (anonymous):
Use the formula n-2(180), where n=11. 9(180) = 1620. :)
OpenStudy (anonymous):
1620 as 180 x (n-2) where n = no. of sides
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