Quadrilaterals - NCERT Class 9 Maths

The chapter 8 starts with an introduction to quadrilaterals by laying out a few examples followed by angle sum property of quadrilaterals. Next, the chapter   about types of quadrilaterals and properties of the parallelogram which includes a series of theorems. Finally, the chapter ends by discussing another condition for a quadrilateral to be a parallelogram followed by the midpoint theorem.

Exercise 8.1

Exercise 8.2