The order of rotational symmetry of a square about its centre is __.

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Solution

The angle of rotation in a square is $90^{\circ}$ .
Therefore, the order of rotational symmetry of a square about its centre is 4.

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The order of rotational symmetry of a square about its centre is .

(a) A polygon has 2 lines of symmetry and order of rotational symmetry is 2. The adjacent sides of the polygon are not equal. The perimeter of the polygon is 24 m. Given one side length as 9 m, find the area of the polygon?

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(c) The order of the rotational symmetry of the given figure about the point marked ‘x’ is:

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(a) After rotating through an angle of 120 degrees through its centre of symmetry the figure looks exactly the same as its original. At what other angles will it happen for the figure? Describe with an example.

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The order of rotational symmetry of a square about its centre is __.

The angle of rotation in a square is 90∘. Therefore, the order of rotational symmetry of a square about its centre is 4.

The angle of rotation in a square is $90^{\circ}$ .
Therefore, the order of rotational symmetry of a square about its centre is 4.