Each of the letter's H, N, S and Z has a rotational symmetry of order______.

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Solution

Solution
If a figure is rotated around a Centre point and it still appears exactly as it did before the rotation, it is said to have rotational symmetry.
Alphabets H, N, S and Z on rotating twice we get the original alphabet.
Hence order of rotational symmetry is $2$

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Question 45
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Each of the letters H, N, S and Z has a rotational symmetry of order ___.

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(iii) a quadrilateral with a rotational symmetry of order more than 1 but not a line symmetry.

(iv) a quadrilateral with line symmetry but not a rotational symmetry of order more than 1.

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