# to find area of a circle
import math # here math module is imported
radius = float(input('Enter Radius: '))
area_of_circle = math.pi*radius**2 # pi is a constant in math module
print('Area of Circle= ', area_of_circle)
print('Area of Circle= {:0.2f}'.format(area_of_circle))
OUTPUT:
Enter Radius: 5
Area of Circle= 78.53981633974483
Area of Circle= 78.54
