Class 8 Chapter 3 Understanding Quadrilateral Exercise 3.1 , 3.2 | NCERT CBSE RBSE #class8maths Quadrilateral Basics. How to find number of diagonals? How to find exterior angle? How to Find each exterior angle of a regular polygon? How to find number of sides in regular polygon? How to find number of sides if each exterior angle measure is given? Angle Sum Property Of Quadrilateral. Angle sum property of polygon. What is the sum of all exterior angle of a polygon? What is curve? Types of Curves. What is open curve? What is closed curve? Regular polygon and Irregular polygon. Convex and concave polygons. #mathsclassesbyamansir #amansir #amansirmaths #understandingquadrilateral #class8maths #quadrilateral #numberofdiagonal #basicmaths