Class 4 (CBSE) • MathematicsChapter 11: Fun with Symmetry⭐ Topic 1
Lines of Symmetry
We learn to find and draw lines of symmetry in different shapes, understanding that some shapes have more than one.
1
Know it
Step 1 of 3
2
See the pattern
Step 2 of 3
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Try it out
Step 3 of 3
Fun picture
Try it now
Learn the idea step by step
1
Know it
A line of symmetry divides a shape into two matching halves - a square has 4 lines of symmetry, while a rectangle has only 2.
2
See the pattern
A circle has infinite lines of symmetry, since any line through its centre divides it into two equal, matching halves.
Quick revision
Remember these!
- A line of symmetry divides a shape into matching halves.
- A square has 4 lines of symmetry.
- A rectangle has 2 lines of symmetry.
- A circle has infinite lines of symmetry.
- A scalene triangle has no lines of symmetry.
- Symmetry lines help understand shape properties.
- Symmetry appears in many designs and patterns.
- Not all shapes have the same number of symmetry lines.
Words to know
lines of symmetry