NCERT Solutions for Class 8 Maths Chapter 3- Understanding Quadrilaterals The Chapter 3 of NCERT helps you understand the fundamental concepts related to quadrilaterals. From explanation of quadrilaterals to different types of quadrilaterals, the chapter mainly discusses the following concepts: 1. Parallelogram: A quadrilateral with each pair of opposite sides parallel. Properties: Opposite sides are equal. Opposite angles are equal. Diagonals bisect one another 2. Rhombus: A parallelogram with sides of equal length. Properties: All the properties of a parallelogram. Diagonals are perpendicular to each other 3. Rectangle: A parallelogram with a right angle. Properties: All the properties of a parallelogram. Each of the angles is a right angle. Diagonals are equal. 4. Square: A rectangle with sides of equal length. Properties: All the properties of a parallelogram, rhombus and a rectangle. 5. Kite: A quadrilateral with exactly two pairs of equal consecutive sides Properties: The diagonals are perpendicular to one another One of the diagonals bisects the other. Learning the chapter Understanding Quadrilaterals enables the students to: • Understand the: • Properties of quadrilaterals: Sum of angles of a quadrilateral is equal to 360o • Properties of parallelogram: Opposite sides of a parallelogram are equal, Opposite angles of a parallelogram are equal. • Diagonals of a parallelogram bisect each other. • Diagonals of a rectangle are equal and bisect each other. • Diagonals of a rhombus bisect each other at right angles. • Diagonals of a square are equal and bisect each other at right angles.