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Chapter 3 Class 8 Understanding Quadrilaterals

Get NCERT Solutions of Chapter 3 Class 8 Understanding Quadrilaterals free at teachoo. Answers to all exercise questions and examples have been solved, with concepts of the chapter explained.


In this chapter, we will learn

  • What are curves, open curves, closed curves, simple curves
  • What are polygons, Different Types of Polygons
  • Diagonal of a Polygon
  • Convex and Concave Polygons
  • Regular and Irregular Polygons
  • Angle Sum Property of Polygons
  • Sum of Exterior Angles of a Polygon
  • Exterior Angles of a Regular Polygon
  • What is a Quadrilateral
  • Different types of Quadrilaterals and their properties - 
    • Trapezium
    • Kite
    • Parallelogram
    • Rhombus
    • Rectangle
    • Square
  • Parallelogram properties - Opposite Angles are equal, Opposite sides are equal, Adjacent Angles are supplementary, Diagonals Bisect Each other
  • Rhombus, Rectangle, Square are all parallelograms with additional properties


To learn from the NCERT, click on an exercise or example link below to get started.

To learn the Teachoo (टीचू) way, click on a concept below Concept Wise. In Concept Wise, first the concept is explained, and then the questions of that concept is solved - from easy to difficult


Note: When you click on a link, the first question or topic will open. To see other questions, there is a list with all the questions and concepts (it has arrows). You can refer to the list for other questions.


Click on a link now to begin.

Serial order wise

  Ex 3.1
  Ex 3.2
  Ex 3.3
  Ex 3.4

Concept wise