Related to Duodecagon:dodecagon dodecagon do·dec·a·gon (dō-dĕk′ə-gŏn′) n. A polygon with 12 sides and 12 angles. [Greekdōdekagōnon:dōdeka,twelve(duo,two; seedwo-inIndo-European roots+deka,ten; seedekm̥inIndo-European roots) +-gōnon,-gon.] ...
Best Answer The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees. 1440 degrees Wiki User ∙11yago This answer is: Add your answer: Earn +20pts Q:What is the sum of the measures of the angle of a decagon?