Circumference of Circle in Python

Description

Python program to get radius of circle and find circumference of circle.
Sample Input 1:
4
Sample Output 1:
25.12

Solution

r=int(input("Enter the radius:"))
area=2*3.14*r
print("circumference: {}".format(area))

Explanation

get the radius of a circle using input() method
calculate area = 2 * pi * r