Question

definition of quadrilateral

Answer 1

a quadrilateral is a closed figure formed by lines and angles which are not same

Answer 2

Hey mate........

"A geometrical figure with four sides is called a quadrilateral "

Or

"If a geometrical figure has four sides,then the figure is said to be a quadrilateral "

Or

The word itself has its defination

Quadri means four and lateral means sides. So actually means a four sided figure.

Hope it helps .......✌