Program for Area of Circle in Python

In this program, with the help of python, we are calculating the area of the circle.

Area of the circle is equal to the 3.14 * r * r, where r is the radius of the circle.

Area of the circle is the number of square units inside the circle.

For example:

Input: r = 5

Output: 3.14 * 5 * 5 = 78.5

Algorithm:

  1. Input the radius from the user.
  2. Calculate the area of the circle using 3.14 * r * r.
  3. Print the area.
  4. Exit 

Code:

r = int(input("Enter the radius:"))

area = 3.14*r*r

print("The area is:", area)

 

Output: 

Enter the radius : 2

The area is : 12.56

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