None.
The only common property of quadrilaterals is that they are plane figures that are bounded by four straight sides, and that they have four vertices. So far all quadrilaterals are candidates for the answer. But then with each quadrilateral you get some unique property that is not shared by others so NO quadrilateral has all te properties of all the other quadrilaterals.
All squares are quadrilaterals. All quadrilaterals are not squares. There is no square that is not a quadrilateral.
All quadrilaterals are polygons, but not all polygons are quadrilaterals.
A rectangle is a quadrilateral. As such, it shares the distinguishing characteristic of quadrilaterals with all other quadrilaterals, and has four (4) sides.
A rectangle is a special kind of quadrilateral that has four right angles and opposite sides that are equal and parallel.
No, all quadrilaterals are not parallelograms.
All squares are quadrilaterals. All quadrilaterals are not squares. There is no square that is not a quadrilateral.
All quadrilaterals are polygons, but not all polygons are quadrilaterals.
Not all quadrilaterals are rectangles. Some quadrilaterals are rectangles, and the rest are not. However, all rectangles are quadrilaterals.
A rectangle is a quadrilateral. As such, it shares the distinguishing characteristic of quadrilaterals with all other quadrilaterals, and has four (4) sides.
A rectangle is a special kind of quadrilateral that has four right angles and opposite sides that are equal and parallel.
No, all quadrilaterals are not parallelograms.
Some are, and some are not. A trapezoid is a special kind of quadrilateral ... one in which two of the four sides are parallel. So all trapezoids are quadrilaterals, but there are also a lot of other quadrilaterals that are not trapezoids.
Yes. If a polygon has 4 sides, then it is a quadrilateral.
Quadrilateral is the broader term. All kites are quadrilaterals, but not all quadrilaterals are kites.
Four sides, meeting pairwise at four vertices. Sum of interior angles = 360 degrees. Two diagonals. Most other properties are either those of all polygons, or of special cases of quadrilaterals.
All quadrilaterals. That is part of the definition of being a quadrilateral.
Not necessarily. All parallelograms are quadrilaterals but not all quadrilaterals are parallelograms. Parallelograms are more specific instances of quadrilaterals. Its like saying all squares are rectangles but not all rectangles are squares.