A plane figure with four sides and four angles.
A plane figure of four sides.
( geom.) A plane figure having four sides.
having four sides
having four sides and four angles
Three more of the steel spikes were hammered into the surface, forming a rough quadrilateral around the Pole. "Anchorite", Randall Garrett.
Three more of the steel spikes were hammered into the surface, forming a rough quadrilateral around the Pole.
The act of separating or classifying; a seeing of unlikenesses between two persons or things. ...