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Question

List the alphabets having rotational symmetry and reflection symmetry, and also list the orders in rotational symmetry as well as reflections symmetry.


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Solution

Identify the alphabets having symmetry:

Alphabets having a reflection symmetry about a vertical mirror are A,H,I,M,O,T,U,V,W,X,Y.

Alphabets having a reflection symmetry about a horizontal mirror are B,C,D,E,H,I,O,X.

Alphabets having both horizontal and vertical mirrors are H,I,O,X.

Alphabet having both reflection symmetry as well as rotation symmetry is O

If the alphabetsS,Z,I,H,X,N are rotated by 180° degree about particular axes, they remain the same.

Therefore order of S,Z,I,H,X,N is 2

Hence, the list of symmetry of alphabets is identified.


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