In this chapter, we are going to learn the properties of different types of quadrilaterals like Parallelogram, Rectangle, Square, Rhombus, and Trapezium. To develop a grip on the topic, the NCERT Solutions for Class 8 Maths Chapter 3 Understanding Quadrilaterals are prepared and explained by the maths experts. The main topics which we are going to learn polygons, angle sum property, properties of different kinds of quadrilaterals.
Quadrilateral basically a closed shape made by using 4 straight lines and having four connecting points. A quadrilateral can be formed with differentdifferent lengths of straight lines. Quadrilaterals have some properties like a quadrilateral always has four interior angles, a quadrilateral always has four sides, and the sum of all the interior angles in a quadrilateral is 360 degree. Quadrilaterals are classified as per the measurement of lengths and interior angles. In NCERT Class 8 Maths Chapter 3 Understanding Quadrilaterals we learn following types of quadrilaterals.
This quadrilateral has opposite sides equal and parallel.
Sum of opposite Angles are equal
Diagonals bisect each other
It has all the angles right angles.
This quadrilateral have opposite sides equal and parallel
Diagonals are equal.
Square
Two opposite sides are parallel and the other two are unparalleled.
A quadrilateral exactly two pairs of equal consecutive with sides.
All the rectangles are parallelograms
All rhombuses are parallelograms
All Squares are Rectangles
All squares are rhombuses
Here we are providing you NCERT Solutions for Class 8 Maths Chapter 3  Understanding Quadrilaterals to understand the concept to tackle all the problems based on quadrilaterals. It’s really an important segment under geometry without the concept of this topic your efficiency to crack the geometry problem will downfall and thus we request you to give an attentive approach while going through this chapter. Because it carries around 35% of the content of geometry. NCERT Solutions for Class 8 Maths Chapter 3 will give you a detailed analysis of all the question based on NCERT for Class 8 Maths Chapter 3  Understanding Quadrilaterals. In this chapter, there are 4 exercises with 31 questions.
Que. What is a regular polygon? State the name of a regular polygon of (i) 3 sides (ii) 4 sides (iii) 6 sides Solution Polygon which has equal sides and equal angles.

3.1 Introduction
3.2 Polygons
3.2.1 Classification of polygons
3.2.2 Diagonals
3.2.3 Convex and concave polygons
3.2.4 Regular and irregular polygons
3.2.5 Angle sum property
3.3 Sum of the Measures of the Exterior Angles of a Polygon
3.4 Kinds of Quadrilaterals
3.4.1 Trapezium
3.4.2 Kite
3.4.3 Parallelogram
3.4.4 Elements of a parallelogram
3.4.5 Angles of a parallelogram
3.4.6 Diagonals of a parallelogram
3.5 Some Special Parallelograms
3.5.1 Rhombus
3.5.2 A rectangle
3.5.3 A square
Chapter 1  Rational Number 
Chapter 2  
Chapter4  
Chapter5  
Chapter6  
Chapter7  
Chapter8  
Chapter9  
Chapter10  
Chapter11  
Chapter12  
Chapter13  
Chapter14  
Chapter15  
Chapter16 
1. State whether True or False.
(e) All kites are rhombuses.
Q2. How many diagonals does each of the following have?
(a) A convex quadrilateral
1. A mason has made a concrete slab. He needs it to be rectangular. In what different ways can he make sure that it is rectangular?