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OpenStudy (anonymous):
What is the sum of the interior angles of a hendecagon?
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jimthompson5910 (jim_thompson5910):
a hendecagon has 11 sides
jimthompson5910 (jim_thompson5910):
S = 180(n-2) S = 180(11-2) ... plug in n = 11, then evaluate S = 180*9 S = 1620 So the sum of the interior angles is 1620 degrees
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