1. How many lines of symmetry does a regular pentagon have?
- A4
- B5
- C6
- D10
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Answer: B) 5
A regular pentagon has 5 equal sides and angles, so it has 5 lines of symmetry.
Class 6 Symmetry — practice questions with answers
Geometry · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. How many lines of symmetry does an equilateral triangle have?
- A6
- B3
- C2
- D4
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Answer: B) 3
An equilateral triangle has all sides and angles equal. A line from each vertex to the midpoint of the opposite side gives 3 lines of symmetry.
3. What is the correct name for the line that divides a figure into two identical mirror halves?
- ALine of symmetry
- BLine of rotation
- CLine of translation
- DLine of proportion
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Answer: A) Line of symmetry
Such a line is called the line of symmetry (or axis of symmetry).
4. Which Indian symbol/figure below typically shows reflection symmetry?
- AA rangoli with a mirror-image design
- BA torn piece of paper
- CA scribble
- DA splash of water
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Answer: A) A rangoli with a mirror-image design
Many rangoli designs are made so that one half is the mirror image of the other, showing reflection symmetry.
5. Two lines of symmetry of a square pass through the midpoints of opposite sides. Through what do the other two lines of symmetry pass?
- AThe diagonals (corner to opposite corner)
- BPoints outside the square
- COnly one vertex each
- DThe centre only, without touching any vertex
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Answer: A) The diagonals (corner to opposite corner)
The other two lines of symmetry of a square lie along its diagonals, each joining a corner to the opposite corner.
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