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Question
Edward has some toys of different shapes. Which among the following toys will have a rotational symmetry of order 4?
Edward has some toys of different shapes. Which among the following toys will have a rotational symmetry of order 4?
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Solution
The correct option is D
An object has rotational symmetry if there is a center point around which the object is turned (rotated) a certain number of degrees and the object looks the same. The number of positions in which the object looks exactly the same is called the order of the symmetry.
The red dot in the above figure is the starting point and as we rotate the figure by 90°, the figure is exactly the same. Hence, the order of symmetry is 4.
An object has rotational symmetry if there is a center point around which the object is turned (rotated) a certain number of degrees and the object looks the same. The number of positions in which the object looks exactly the same is called the order of the symmetry.
The red dot in the above figure is the starting point and as we rotate the figure by 90°, the figure is exactly the same. Hence, the order of symmetry is 4.