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OpenStudy (anonymous):
What is the sum of the interior angles of a dodecagon? Answer 1440° 1620° 1800° 2160°
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OpenStudy (anonymous):
150 * 12 = 1800 degrees
OpenStudy (anonymous):
thank u so much
OpenStudy (anonymous):
how did u get 150 and 12
hero (hero):
360/12 = 30 180 - 30 = 150 150*12 = 1800 deg
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