Python program to calculate circle circumference

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Following program shows you how to calculate circle circumference.
In this program we get circle radius from user and calculate circumference using following formula
Circumference = 2 X PI X r

circleRadius = float(input("Please enter the radius of circle:"))
circumferenceOfCircle = 2 * 22 / 7 * circleRadius
print("Circumference of circle is: ", circumferenceOfCircle)

Output:

Please enter the radius of circle: 12
Circumference of circle is:  75.42857142857143
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