Download Fun with Symmetry – NCERT Class 4 Maths Chapter 11 PDF from the new NCERT Class 4 Maths book Maths Mela (2026-27). Read the chapter online or download the free PDF. A shape is symmetrical if a fold makes its two halves sit exactly on each other. That fold is its line of symmetry.
Fun with Symmetry PDF – Chapter 11 of Maths Mela
Read the chapter online or download the PDF.
| Chapter | Download | |
|---|---|---|
| Chapter 11 PDF | Fun with Symmetry | View PDF |
| Full book | NCERT Class 4 Maths – Maths Mela | View Book |
Read Online
What Is in Fun with Symmetry? (Class 4 Maths Chapter 11)
- A shape is symmetrical if a fold makes its two halves sit exactly on each other. That fold is its line of symmetry.
- A shape may have 0, 1, 2 or more lines of symmetry. A square has 4, a rectangle has 2, a parallelogram has none.
- A mirror kept on a line shows one half and its reflection together. The line is called the mirror line or line of reflection.
- Letters and digits have their own symmetry. The digits 0, 1 and 8 look the same in a mirror kept at the side.
- Folding and cutting paper gives symmetrical holes. Every fold doubles the number of cuts you get.
- Tiles are laid with no gaps and no overlaps. The same tile can be slid, flipped or turned to make a pattern.
Quick revision – Fun with Symmetry
| Shape | Number of sides | Lines of symmetry | Where the line goes |
|---|---|---|---|
| Square | 4 | 4 | 2 through the middle, 2 along the corners |
| Rectangle | 4 | 2 | One across the middle, one down the middle |
| Rhombus (diamond) | 4 | 2 | Along its two diagonals |
| Kite | 4 | 1 | Along its long diagonal |
| Isosceles trapezium | 4 | 1 | Straight down the middle |
| Parallelogram | 4 | 0 | It has none |
| Arrowhead (dart) | 4 | 1 | Down the middle, through the point |
| Isosceles triangle | 3 | 1 | From the tip to the middle of the base |
| Right isosceles triangle | 3 | 1 | From the square corner to the middle of the longest side |
| Scalene triangle | 3 | 0 | It has none |
| Digits 0, 1, 8 | — | Yes | A mirror at the side leaves them the same |
| Digits 0, 1, 3, 8 | — | Yes | A mirror above or below leaves them the same |
Old NCERT vs New – Class 4 Maths
This chapter is from Maths Mela, the new NCERT Class 4 Maths book (NCF-SE 2023, used from 2025-26). It replaced the old book “Math-Magic”, so chapter numbers and names differ from older PDFs.
Solutions and All Chapters
Answers to the exercises and the full chapter list of Maths Mela:
Fun with Symmetry – Overview
| Class | Class 4 |
| Subject | Maths |
| Book | Maths Mela – new NCERT book |
| Chapter | 11 of 14 – Fun with Symmetry |
| Book pages | 164 – 174 |
| Edition | NCERT Reprint 2026-27 |
| Session | 2026-27 |
| Free – read online or download |
Class 4 Maths Chapter 11 – FAQs
Where can I download Fun with Symmetry Class 4 PDF?
From the download table on this page – the chapter PDF is free, and the full book is linked too.
What is Class 4 Maths Chapter 11 about?
A shape is symmetrical if a fold makes its two halves sit exactly on each other. That fold is its line of symmetry.
Is Fun with Symmetry from the new NCERT Class 4 Maths book?
Yes. It is chapter 11 of maths mela, the new NCERT Class 4 Maths book for 2026-27.
Is this the latest NCERT edition for 2026-27?
Yes – the PDF is NCERT’s latest edition for the 2026-27 session.
Where are the NCERT Solutions for Class 4 Maths Chapter 11?
Open the NCERT Solutions link above for answers to the exercise questions.