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A shape has a line of symmetry if folding it along that line makes the two halves match exactly. The letter A has one (down the middle), a rectangle has two and a square has four. Number patterns follow a rule: add the same number, multiply by the same number, or add one more each time.
✓ You passed this lesson’s test.
Fold and match — “a line of symmetry folds a shape into two halves that match exactly”
Use it for: Rangoli, butterflies and kites, letter shapes, and the patterns and symmetry chapter of Class 4 maths.
Check: A paper rectangle folded corner to corner leaves bits sticking out — not a match ✓
▶ Watch it animatedWork it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
20 sums. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 🦋 Mirror Maker badge when you pass — and a certificate when you finish all 8 lessons of Part 4 · Class 4. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
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