How to find circumference of circle with Python?
What we’ll do:
Welcome to this blog, here in this blog we will write a program to ind circumference of circle with Python.
Formula:
To find the circumference of the circle, the formula is C = 2πr
What’s happening:
First of all we declare function “getCirumference()” that takes given input as argument. Inside the function we initialize “PI” a constant variable as we know the value is not gonna change. So we define the “PI” variable to value 3.142.
Next we return 2xPIxr in which r is the input that we got from the user.
Finally we print the result, but here as I need only upto 2 decimal points so I am gonna say “.%2f”, so this prints only upto two digits after decimal point.
Source Code:
def getCircumference(r):
PI = 3.142 #Declaring the constant pi value
return 2*PI*r; #Performing 2xπxr#function call
#Printing only 2 decimal digits so "%.2f"#Test case 1
print("circumference is %.2f" %getCircumference(5));#Test case 2
print("circumference is %.2f" %getCircumference(12));
Output:
circumference is 31.42
circumference is 75.40What we learnt:
Through this blog, you learnt how to find the circumference of circle with Python.
Thank you.
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