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1. Identify the numerals that are symmetrical:

(a) (b) (c) (d)

2. Draw the line of symmetry for the following shapes:
(a) (b) (c) (d)

3. Identify the picture given with their correct mirror images.

(a) (b) (c)

Mirror Mirror Mirror

Symmetry

When an object is divided into two equal parts, and one half is perfectly aligned
with the other half, then the object is considered to be symmetrical.

This property is often reffered as line symmetry.
For example, look at the two halves of the spectacles given alongside.

Here each half is identical to the other.

So it is symmetrical. Symmetry exists all around us.
Look at the pictures shown below.

Here, each object shows symmetry when divided from the middle. So, all these objects are
symmetrical.

Objects that do not possess this property, that is, if we cannot divide an object into two halves, are
called non-symmetrical or asymmetrical.

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