Python Program - How to Calculate Area of a Circle

Short Python program that calculates the area of a circle.
Equation is Area of a Circle = [Pi]*[radius (squared)] or Pi*r^2.
Program is below and attached:

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# Python program that calculates the area of a circle
# Formula is [pi] * [Radius^2]

import math

# Get the radius from the user
radius = input("Enter the radius of the circle: ")

# Convert string that was input to an integer
radiusofcircle = int(radius)

# Calculate the area of the circle
radiussquared = radiusofcircle**2
areaofcircle = math.pi * radiussquared

print ("The radius entered is: ", radiusofcircle)
print ("The area of the circle is: ", areaofcircle)