To sketch: the figure that has a rotational symmetry and to describe the angle of rotation.
Explanation of Solution
Given information:
Consider the rotational symmetry.
Consider the figure is rotated about
exactly same as before rotation. Then the figure has rotational symmetry.
The angle of rotation is the smallest angle for which the figure is rotated to coincide with
it self.
Graph:
Consider the square
Hence, the square has the rotational symmetry and it has angle of rotation
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