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OpenStudy (sarahc):
What is the sum of the interior angles of a hendecagon? 1440° 1620° 2160° 1800°
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OpenStudy (anonymous):
180(n-2)° 180(11-2)° 180(9)° 1620°
OpenStudy (sarahc):
(11-2)180 ??
OpenStudy (sarahc):
okay! yay thanks :D
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