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Can we have a rotational symmetry of order more than 1 whose angle of rotation is:

(i) 45 (ii) 17 ?

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(i)If the angle of rotation is 45 , then symmetry of order is possible and would be 8 rotations.

(ii) If the angle of rotational is 17 , then symmetry of order is not possible because 360 is not complete divided by 17 .

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