What is the order of rotational symmetry and angle of rotation for this design?
6and120o
4and90o
8and60o
8and45o
A
4and90o
B
8and45o
C
6and120o
D
8and60o
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Solution
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On rotating the given shape by 90∘, the shape remains the same.
Thus the angle of rotation for the given shape is 90∘.
Also on rotating 90∘, four times, the shape remains the same on each turn and comes back to its original position. Thus the order of rotational symmetry of the given shape is 4
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