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E:\Working\Orange_Education\Math_Genius_4\Open_Files\Chap-08
\\September 30, 2025 9:50 AM Bharat Arora P-9 Reader _________________________ Date: ___________________74
Some figures or objects have more than one line of symmetry. These lines of symmetry 2. draw the line of symmetry in each of the following.
can be vertical, horizontal or diagonal.
(a) (b) (c) (d)
3. tick () whether the dotted line is the line of symmetry in the following
Three lines of symmetry Two lines of symmetry Four lines of symmetry
figures.
activity Creative Thinking
Take a sheet of paper and fold it in half twice. (a) (b) (c) (d)
Cut out any shapes on the corners with a pair of scissors and unfold the paper.
4. draw all possible line(s) of symmetry for these geometrical figures.
⇒ ⇒ ⇒ ⇒
(a) (b) (c) (d)
The figure so obtained will look identical if folded along any of the dotted lines.
The design so formed by cutting is symmetrical because when folded on any of
the dotted lines, both the halves overlap each other. Mirror iMage (reflection)
The square design shown above has 2 lines of symmetry.
Look at the key P shown alongside.
Some letters of the English alphabet also show symmetry. When we flip the key P, we get the key Q.
Key Q is the mirror image or reflection of key P.
Think Tank Creative Thinking A reflection is like a mirror image. The figure does not change in
1. Is there any number from 0 to 9 which has a line
of symmetry? If yes, write them. reflection. The only change is in the orientation. P Q
2. Identify at least three letters in the English alphabet that Here are some more examples of reflections or mirror images.
have more than one line of symmetry.
Math Insight
Practice time 8A Reflection can be vertical,
or horizontal depending
1. Which of the following figures are symmetrical? The mirror image is called a reflection and the line of on the mirror line.
reflection, that is, the mirror line becomes the line of symmetry.
(a) (b) (c) (d)
Knowledge Desk
The word ‘AMBULANCE’ is written inverted in front of the Cross-Curricular Learning
(e) (f) (g) (h) ambulance so that in an emergency, the drivers of other
vehicles can see the word ‘AMBULANCE’ in their rear-view
mirror and make the way for it.
teacher’s Discuss with students with examples that, there are some shapes or letters of the English alphabet that are AMBULANCE AMBULANCE
tip not symmetrical, these shapes are called asymmetrical.
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