The document discusses two types of symmetry: line symmetry and rotational symmetry. Line symmetry occurs when an object can be split into two mirror image halves. Shapes like circles have infinite lines of symmetry while squares have four lines of symmetry. Rotational symmetry is when an object looks the same when rotated part of a full rotation, such as a triangle having rotational symmetry of order 3 if it matches itself when rotated 120 degrees. Examples of objects with different orders of rotational symmetry are provided.

1. Sym
m
etry
Line symmetry & Rotational
symmetry

2. What is Symmetry?
Symmetry is
when an object
has two or more
equal sides
when split in
half or in smaller
pieces.
The tiger has 1
line of symmetry .

3. A shape has
line
symmetry
when one half
of it is the
mirror image
of the other
half.
What is line Symmetry ?

4. This
butterfly
has 1line of
symmetry
This image has 2 lines of
symmetry

5. Symmetry with alphabets

6. Circle has
infinite lines of
symmetry
Square has 4
lines of
symmetry
Rectangle has 2 lines
of Symmetry

7. This smiley face
has 1 line of
symmetry

8. This symbol has 3
lines of symmetry
This flag has 4 lines
of symmetry

9. What is Rotational symmetry ?
An image has Rotational Symmetry if there is a
centre point around
which the object is turned a certain number of
degrees and the object
still looks the same, ie it matches itself a number of
times while it is being rotated
Since this triangle will
match itself 3 times as it is
rotated it is said to have
rotational symmetry of
Order 3.

10. Since all the toppings are
placed so evenly, this
pizza has rotational
symmetry of
Order 6.
This flower
has rotational
symmetry of
Order 5 since
it matches
itself 5 times..

11. This
Swastika
has
rotational
symmetry
of order 4

12. Some examples of rotational
symmetry
Rotational
order 5
Rotational
order 2
Rotational
order 4

13. Done by Sharanya