A ten-sided polygon. In Flatland, a decagon would be one of the higher-skilled professionals, such as a doctor.
Dec"a*gon (?), n. [Pref. deca- + Gr. a corner or angle: cf. F. d'ecagone.] Geom.
A plane figure having ten sides and ten angles; any figure having ten angles. A regular decagon is one that has all its sides and angles equal.
© Webster 1913.
Log in or register
to write something here or to contact authors.