The angle of rotational symmetry is the smallest angle for which the figure can be rotated to coincide with itself
So that refers to the minimum angle that a hale is rotated through to have it concide exactly with itself
The star has 5 sides and spans over an entire angle of 360 degrees
Therefore, to obtain the angle of rotational symmetry, we will find the quotient of 360 degrees and 5 sides as shown below:
Angle of rotational symmetry = 360°/5 = 72°
