五角形 Traditional form: 五角形 Pinyin (reading): wǔjiǎoxíng Definitions: pentagon Characters: 五 - five; surname 角 - angle, corner; horn, horn-shaped 形 - form, shape; to appear; to describe; to look Traditional characters: 五 - five; surname 角 - angle, corner; horn, horn-shaped 形 - form, shape; to appear; to describe; to look