Answer:
The angle of rotation through which the image of a regular pentagon coincide with its preimage is:
Option: B
B. 72 degrees
Step-by-step explanation:
Rotational symmery--
Rotational symmetry is the minimum angle by which a figure is rotated such that it coincides with the original figure.
We know that for any n-regular polygon (i.e. a regular polygon with n number of sides) has a rotational symmetry of:
\(\dfrac{360}{n}\ degrees\)
Here we are asked to find the rotational symmetry in case of pentagon i.e. n=5
The angular symmetry is:
\(\dfrac{360}{5}=72\ degrees\)
