[ CBSE CLASS 6 / COMPUTATIONAL THINKING / CHAPTER 9 / 2026-27 ]

Class 6 Symmetry: Computational Thinking Questions and Answers

The Symmetry CT chapter asks students to find lines of symmetry and rotational symmetry in shapes, letters and designs. Seeing that a shape repeats when folded or turned is pattern recognition; working out the smallest turn that repeats it is abstraction.

Practise 6 questions Printable worksheet
Skills: Pattern recognition · Abstraction · Algorithmic thinking · Linked to Ganita Prakash Chapter 9: Symmetry

[ WORKED EXAMPLE ]

How many lines of symmetry does a square have?

Answer: 4.

  1. 2 lines go through the midpoints of opposite sides.
  2. 2 lines go along the diagonals.
  3. 2 + 2 = 4 lines of symmetry.

What this chapter is about

Students find lines of symmetry (fold-and-match) and rotational symmetry (turn-and-match) in shapes, letters, rangoli and designs.

A key idea is the angle of rotation: the smallest turn after which a shape looks exactly the same.

Regular shapes follow a pattern: a regular polygon with n sides has n lines of symmetry and rotational symmetry of order n.

[ PRACTICE MODE / 6 QUESTIONS ]

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Pattern recognitionQuestion 1 of 6 · Score 0

How many lines of symmetry does a square have?

Choose one answer

All Symmetry questions with answers

Try each one first, then open it to check the answer and the reasoning.

Q1How many lines of symmetry does a square have?
  • 2
  • 4
  • 6
  • 8

Answer: B. 4

Hint: Count folds through the middle of the sides and through the corners.

  1. 2 lines go through the midpoints of opposite sides.
  2. 2 lines go along the diagonals.
  3. 2 + 2 = 4 lines of symmetry.

Skill: Pattern recognition · Level: easy · Report an error

Q2Which capital letter has a vertical line of symmetry?
  • A
  • F
  • G
  • J

Answer: A. A

Hint: Imagine folding each letter down the middle from top to bottom.

  1. The left and right halves of A match.
  2. F, G and J have no matching halves.
  3. So A has a vertical line of symmetry.

Skill: Pattern recognition · Level: easy · Report an error

Q3What is the order of rotational symmetry of an equilateral triangle?
  • 1
  • 2
  • 3
  • 6

Answer: C. 3

Hint: How many times does it look the same during one full turn?

  1. Turning by 120° makes it look the same.
  2. In a full 360° turn, that happens at 120°, 240° and 360°.
  3. So the order is 3.

Skill: Abstraction · Level: medium · Report an error

Q4What is the smallest angle you can turn a regular hexagon so that it looks exactly the same?
  • 30°
  • 60°
  • 90°
  • 120°

Answer: B. 60°

Hint: A regular hexagon has 6 equal corners around a full turn.

  1. A full turn is 360°.
  2. The hexagon repeats 6 times in one turn.
  3. 360° ÷ 6 = 60°.

Skill: Abstraction · Level: medium · Report an error

Q5How many lines of symmetry does a circle have?
  • 1
  • 2
  • 4
  • Infinitely many

Answer: D. Infinitely many

Hint: Does every line through the centre fold a circle onto itself?

  1. Any line through the centre splits the circle into two matching halves.
  2. There is no limit to how many such lines you can draw.
  3. So a circle has infinitely many lines of symmetry.

Skill: Pattern recognition · Level: medium · Report an error

Q6A mirror stands upright beside a word. Which word looks exactly the same in the mirror?
  • MOM
  • DAD
  • BOB
  • NAN

Answer: A. MOM

Hint: A mirror reverses the order of letters and flips each letter left to right.

  1. Reversed order: MOM → MOM, DAD → DAD, BOB → BOB, NAN → NAN.
  2. But each letter is also flipped. D, B and N look different when flipped.
  3. M and O have vertical symmetry, so only MOM looks the same.

Skill: Algorithmic thinking · Level: challenge · Report an error

Frequently asked questions

What does the Class 6 Symmetry Computational Thinking chapter cover?

The Symmetry CT chapter asks students to find lines of symmetry and rotational symmetry in shapes, letters and designs. Seeing that a shape repeats when folded or turned is pattern recognition; working out the smallest turn that repeats it is abstraction.

Which computational thinking skills does Symmetry use?

Symmetry mainly practises pattern recognition, abstraction, algorithmic thinking. It links to Ganita Prakash Chapter 9: Symmetry.

Where are the official CBSE Symmetry questions?

The official questions are in the CBSE Class 6 Computational Thinking and AI handbook for 2026-27, free on the CBSE Academic website. The practice on this page is original and mapped to the same chapter.

More Class 6 chapters