A triangle is a simple closed curve or polygon which is created by three line-segments. On the other hand, in terms of Euclidean plane geometry, a polygon having four edges (or sides) together with four vertices is called a quadrilateral.
Examples of Quadrilateral Triangle :-
A quadrilateral is a closed two-dimensional figure that has 4 sides, 4 angles, and 4 vertices.
Examples of quadrilaterals are :- square, rectangle and trapezium.
