+980 A quadrilateral has 4 sides. Quadrilaterals include squares, rectangles, kites, rhombuses, parallelograms and trapeziums. They also have 4 vertices and an interior angle sum of 360 degrees.
+980 A quadrilateral has 4 sides. Quadrilaterals include squares, rectangles, kites, rhombuses, parallelograms and trapeziums. They also have 4 vertices and an interior angle sum of 360 degrees.
