Read and download the Chapter 4 Practical Geometry PDF from the official NCERT Book for Class 8 Mathematics. Updated for the 2025-26 academic session, you can access the complete Mathematics textbook in PDF format for free.
NCERT Class 8 Mathematics Chapter 4 Practical Geometry Digital Edition
For Class 8 Mathematics, this chapter in NCERT Book Class 8 Maths Practical Geometry provides a detailed overview of important concepts. We highly recommend using this text alongside the NCERT Solutions for Class 8 Mathematics to learn the exercise questions provided at the end of the chapter.
Chapter 4 Practical Geometry NCERT Book Class Class 8 PDF (2025-26)
4.1 Introduction
You have learnt how to draw triangles in Class VII. We require three measurements (of sides and angles) to draw a unique triangle.
Since three measurements were enough to draw a triangle, a natural question arises whether four measurements would be sufficient to draw a unique four sided closed figure, namely, a quadrilateral.
Take a pair of sticks of equal lengths, say 10 cm. Take another pair of sticks of equal lengths, say, 8 cm. Hinge them up suitably to get a rectangle of length 10 cm and breadth 8 cm.
This rectangle has been created with the 4 available measurements. Now just push along the breadth of the rectangle. Is the new shape obtained, still a rectangle (Fig 4.2)? Observe that the rectangle has now become a parallelogram. Have you altered the lengths of the sticks? No! The measurements of sides remain the same.
Give another push to the newly obtained shape in a different direction; what do you get? You again get a parallelogram, which is altogether different (Fig 4.3), yet the four measurements remain the same.
This shows that 4 measurements of a quadrilateral cannot determine it uniquely. Can 5 measurements determine a quadrilateral uniquely? Let us go back to the activity!
Please refer to attached file for NCERT Class 8 Maths Practical Geometry
| NCERT Book Class 8 Maths Answers and Solutions |
Important Practice Resources for Class 8 Mathematics
NCERT Book Class 8 Mathematics Chapter 4 Practical Geometry
Download the official NCERT Textbook for Class 8 Mathematics Chapter 4 Practical Geometry, updated for the latest academic session. These e-books are the main textbook used by major education boards across India. All teachers and subject experts recommend the Chapter 4 Practical Geometry NCERT e-textbook because exam papers for Class 8 are strictly based on the syllabus specified in these books. You can download the complete chapter in PDF format from here.
Download Mathematics Class 8 NCERT eBooks in English
We have provided the complete collection of NCERT books in English Medium for all subjects in Class 8. These digital textbooks are very important for students who have English as their medium of studying. Each chapter, including Chapter 4 Practical Geometry, contains detailed explanations and a detailed list of questions at the end of the chapter. Simply click the links above to get your free Mathematics textbook PDF and start studying today.
Benefits of using NCERT Class 8 Textbooks
The Class 8 Mathematics Chapter 4 Practical Geometry book is designed to provide a strong conceptual understanding. Students should also access NCERT Solutions and revision notes on studiestoday.com to enhance their learning experience.
You can download the latest, teacher-verified PDF for NCERT Book Class 8 Maths Practical Geometry for free on StudiesToday.com. These digital editions are updated as per 2025-26 session and are optimized for mobile reading.
Yes, our collection of Class 8 Mathematics NCERT books follow the 2026 rationalization guidelines. All deleted chapters have been removed and has latest content for you to study.
Downloading chapter-wise PDFs for Class 8 Mathematics allows for faster access, saves storage space, and makes it easier to focus in 2026 on specific topics during revision.
NCERT books are the main source for NCERT exams. By reading NCERT Book Class 8 Maths Practical Geometry line-by-line and practicing its questions, students build strong understanding to get full marks in Mathematics.