So I will summarize the complete chapter. Just like other areas in a couple of minutes. So if I start with parallelograms, important properties are opposite sides are equal, opposite angles are equal, and diagonals bisect each other. Now in a kite like this, adjacent sides are equal, diagonals are perpendicular to each other, one of the diagonal will bisect the other one. Angle B equal to D angle a is not equal to C. so that is about kites, so next we will look at special parallelograms starting with a rhombus like this, which will have the properties of a parallelogram, as well as that of a kite, so all sides are equal, and diagonals are perpendicular bisectors, because in a parallelogram, diagonals bisect each other and in a kite they are perpendicular to each other so together that will be perpendicular bisectors, so that is about rhombus. Next I will take a rectangle, rectangle will have all the properties of a parallelogram, angles are equal and equal to 90 degree, and one more special property ,diagonals are equal. Next, is when you consider a rhombus and a rectangle together, you will get a square like this, where all sides equal. All angles are equal. That is why a square will have properties of parallelogram, rhombus and a rectangle. All the properties of parallelogram, rectangle and a rhombus. So diagonals, that is diagonals will bisect each other, they will be equal and they will be perpendicular to each other. So It is very simple. You can get a complete overview. Just like that. I am very sure that you will know lot more about quadrilaterals by this time.