Quadrilateral meaning in Urdu & English

(1) - Quadrilateral (n.) An area defended by four fortresses supporting each other; as, the Venetian quadrilateral, comprising Mantua, Peschiera, Verona, and Legnano.
(2) - Quadrilateral (n.) A plane figure having four sides, and consequently four angles; a quadrangular figure; any figure formed by four lines.
(3) - Quadrilateral (a.) Having four sides, and consequently four angles; quadrangular.

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