The first function will be to calculate the circumference of a circle.
The formula to calculate the circumference of a circle is:
C = 2 * π * r
Where:
C = Circumference of the circle
π = Pi (approximately 3.14159)
r = Radius of the circle
We can define a function in Python to calculate the circumference of a circle as follows:
```python
import math
def calculate_circumference(radius):
circumference = 2 * math.pi * radius
return circumference
# Example Usage
radius = 5
print("The circumference of the circle with radius", radius, "is:", calculate_circumference(radius))
```
In this function, we first import the math module to use the value of Pi. We then define a function calculate_circumference that takes the radius of the circle as input and calculates the circumference using the formula mentioned above. Finally, we can call this function with a radius value to calculate the circumference of a circle.