Write a Python program which accepts the radius of a circle from the user and compute the area.

Python: Area of a Circle

In geometry, the area enclosed by a circle of radius r is πr2. Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter.

Sample Solution:-

Python Code:

import math
radius = float(input("Input the radius of the circle: "))
area = math.pi * radius ** 2
print("The area of the circle with radius "+str(radius)+" is: "+str(area))

Sample Output:

Input the radius of the circle: 1.1 

The area of the circle with radius 1.1 is: 3.8013271108436504

Flowchart: