Class 4 Mathematics • Maths Mela • Chapter 11 • Reprint 2026–27
Fun with Symmetry: quick answer
This original study companion helps learners understand line symmetry, mirror images, folding, cutting, ink-blot patterns and paper designs. Read the idea, try the worked example, complete the activity and then answer the practice questions without looking back.
What you will learn
- line symmetry, mirror images, folding, cutting, ink-blot patterns and paper designs
Worked example
A square has four lines of symmetry. A general rectangle has two.
Learn by doing
Fold paper in half, cut a small shape along the fold and open it. Identify the line of symmetry in the resulting design.
Practice questions
- How many lines of symmetry does an equilateral triangle have?
- Draw a shape with exactly one line of symmetry.
- Is every diagonal of a rectangle a line of symmetry? Explain.
Revision answers and study tips
First identify what is known and what must be found. Draw a diagram, table or number sentence when it helps. Estimate before calculating, label every measurement with its unit, and explain the rule in words. Check the final answer against the question.
Frequently asked questions
Which NCERT book is this chapter from?
It is Chapter 11, “Fun with Symmetry”, from the current Class 4 Mathematics book Maths Mela (book code demm1), Reprint 2026–27.
Is this a copy of the textbook?
No. This is an independently written learning guide. Use it with the official NCERT chapter for complete classroom activities and illustrations.
How should I revise this chapter?
Review the key idea, redo the example, complete the activity, answer all three questions, and explain one answer aloud in your own words.
Official sources
Source-checked for the 2026–27 reprint. NCERT Kaksha is an independent educational companion and does not reproduce textbook text or artwork.