Download the official Perimeter and Area chapter from the new Ganita Manjari textbook here. This Class 9 Maths Book PDF Chapter 6 Perimeter and Area is the exact NCERT file for the 2026-27 session. Use it to learn perimeter, circumference, and area formulas from the source before your Class 9 annual exam.
- Length: the official chapter PDF runs to 37 pages of text, figures, and exercises.
- What it teaches: perimeter, circumference, arcs and sectors, and the area of common shapes.
- New book: this is the 2026-27 Ganita Manjari book, so Perimeter and Area is now Chapter 6.
This is the original NCERT chapter file, matched to the current 2026-27 syllabus, so every page, figure, and exercise number is exactly what your teacher uses in class.
What's in the Class 9 Maths Perimeter and Area NCERT Book PDF?
The Class 9 Maths Book PDF Chapter 6 Perimeter and Area is a 37-page chapter, the longest in the book. It first separates perimeter from area, then builds the perimeter of polygons and the circumference of a circle with π. The file covers arcs, sectors, and the area of rectangles, triangles, and circles, and ends with composite shapes, three exercise sets, and an End-of-Chapter set.
Video Chapter Walkthrough
Source: Vedantu CBSE 10th on YouTube
Perimeter and Area Section-by-Section Overview
The chapter grows from boundary length to area of curved shapes. The table below maps each section to what you will learn.
| Section | Topic | What you will learn |
|---|---|---|
| Measuring Space | Perimeter vs area | The difference between boundary length and surface covered |
| Perimeter of Shapes | Polygons | Perimeter of squares, rectangles, triangles, and regular polygons |
| Circumference and π | The C/D ratio | Why the ratio of circumference to diameter is always π |
| Arcs and Sectors | Part of a circle | Length of an arc and the perimeter of a sector |
| Area of Shapes | Rectangle and triangle | Area of rectangles, parallelograms, and triangles |
| Area of a Circle | π r2 | Building the circle area from thin sectors |
| Composite Shapes | Breaking figures apart | Splitting a figure into known parts to find its area |
Solved Examples and Exercises in Perimeter and Area
The chapter gives in-text solved examples first, then exercise sets to practise. Read the solved examples before you try each set.
- Exercises 6.1 to 6.3: three sets covering perimeter, circumference, and area.
- End-of-Chapter Exercises: mixed problems that pull the whole chapter together.
- In-text solved examples: step-by-step models placed through the chapter text.
What Changed in the 2026-27 Perimeter and Area Chapter
This chapter comes from the new Ganita Manjari book, which replaces the old 15-chapter NCERT Maths book. The new book is activity-based, so π and the area of a circle are built from paper-cutting activities. The old book split this content across separate mensuration chapters. Now Perimeter and Area gathers it into one Chapter 6, which is why it runs to 37 pages.
How to Read the Perimeter and Area Chapter
Read the Class 9 Maths Book PDF Chapter 6 Perimeter and Area with a ruler and some grid paper. Skim once to see the flow, then read slowly and check each formula on a real shape. Work through the solved examples, and only then try the exercises. This skim, then detail, then examples, then exercises order stops formula mix-ups.
How will Collegedunia Help You with the Perimeter and Area NCERT Book?
Collegedunia pairs the Class 9 Maths Book PDF Chapter 6 Perimeter and Area with free study support, so the formulas stay clear.
- Free download: get the official chapter PDF in one click, with no sign-up.
- Matched resources: open the notes, formula sheet, and solutions for the same chapter.
- 2026-27 ready: every linked resource follows the new Ganita Manjari book.
- Exam focus: the support is framed for your Class 9 annual exam and the base for Class 10 mensuration.
More Perimeter and Area Maths Class 9 Resources
Use the box below to open other study resources for the same chapter.
NCERT Book PDF for Class 9 Maths: All Chapters
Use the table below to open the NCERT Book PDF for any other chapter of the new Class 9 Maths book.
| Chapter | Resource |
|---|---|
| Chapter 1 | Coordinates NCERT Book PDF |
| Chapter 2 | Linear Polynomials NCERT Book PDF |
| Chapter 3 | The World of Numbers NCERT Book PDF |
| Chapter 4 | Algebraic Identities NCERT Book PDF |
| Chapter 5 | Circles NCERT Book PDF |
| Chapter 6 | Perimeter and Area NCERT Book PDF |
| Chapter 7 | Introduction to Probability NCERT Book PDF |
| Chapter 8 | Sequences and Progressions NCERT Book PDF |
Perimeter and Area Class 9 Maths NCERT Book PDF FAQs
Ques. How many pages is the Class 9 Maths Perimeter and Area NCERT Book PDF?
Ans. The official Chapter 6 Perimeter and Area file runs to 37 pages, the longest chapter in the book. It holds the full text, figures, three exercise sets, and the End-of-Chapter set.
Ques. Is Perimeter and Area part of the new Ganita Manjari book?
Ans. Yes. Perimeter and Area is Chapter 6 of the new Ganita Manjari book for the 2026-27 syllabus. The old NCERT book split this content across separate mensuration chapters.
Ques. Is this the official NCERT chapter PDF?
Ans. Yes. This is the original NCERT chapter file, not a copy, so the pages and exercise numbers match the book your school uses.
Ques. What exercises does Chapter 6 have?
Ans. The chapter has three exercise sets, 6.1 to 6.3, and one End-of-Chapter set, along with in-text solved examples.
Ques. Does this chapter explain the value of π?
Ans. Yes. The chapter shows that the ratio of circumference to diameter is always π, and uses it to find the area of a circle.
Comments