tứ giác

== Vietnamese == === Etymology === Sino-Vietnamese word from 四角 (“four corners of a rectangle”), from Japanese 四角 (“square; rectangular”) === Pronunciation === (Hà Nội) IPA(key): [tɨ˧˦ zaːk̚˧˦] (Huế) IPA(key): [tɨ˨˩˦ jaːk̚˦˧˥] (Saigon) IPA(key): [tɨ˦˥ jaːk̚˦˥] === Noun === tứ giác (geometry) quadrilateral ==== Synonyms ==== hình tứ giác