Date post: | 16-Jan-2015 |
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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