symmetry presentation by sharanya

SymmetryLine symmetry & Rotational

symmetry

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 .

A shape has line symmetry when one halfof it is the mirror image of the other half.

What is line Symmetry ?

This butterfly has 1line of symmetry

This image has 2 lines of symmetry

Symmetry with alphabets

Circle has infinite lines of symmetry

Square has 4 lines of symmetry

Rectangle has 2 lines of Symmetry

This smiley face has 1 line of symmetry

This symbol has 3 lines of symmetry

This flag has 4 lines of symmetry

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.

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..

This Swastika has rotational symmetry of order 4

Some examples of rotational symmetry

Rotational order 5

Rotational order 2

Rotational order 4

Done by Sharanya