凹角 āojiǎo reentrant angle Definitions Defs Origin Strokes Stroke Words Sentences Sents 凹角 āojiǎo reentrant angle an internal angle of a polygon that is greater than 180 degrees; an inward-pointing angle
凹角 āojiǎo reentrant angle an internal angle of a polygon that is greater than 180 degrees; an inward-pointing angle
