五边形 Traditional form: 五邊形 Pinyin (reading): wǔbiānxíng Definitions: pentagon Characters: 五 - five; surname 边 - border, edge, margin, side 形 - form, shape; to appear; to describe; to look Traditional characters: 五 - five; surname 邊 - border, edge, margin, side 形 - form, shape; to appear; to describe; to look