Compute the Area of a Circle Using Python

The following example code demonstrates how to Compute the Area of a Circle Using Python.

# programmingempire.com

# Compute Area of a circle
# radius = 10
# area = 3.14 *radius * radius
# print("The area for the circle of radis", radius, "is", area)
# radius = 10
# PI=3.14
# area = PI *radius * radius
# print("The area for the circle of radis", radius, "is", area)

# radius = int(input("Enter a value for radius:"))

# PI=3.14
# area = PI *radius * radius
# print("The area for the circle of radis", radius, "is", area)
import math
radius = int(input("Enter a value for radius:"))

# PI=3.14
if radius >=0:
    area = math.pi*radius * radius
    print("The area for the circle of radis", radius, "is", area)
else:
    print("Invalid Input")

Output

**Program Demonstrating How to Compute the Area of a Circle Using Python**

Further Reading