# Area of Circle Program In Python

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To calculate the area of a circle in Python, you can use the following formula:

``````area = pi * r**2
``````

Here, “area” is the variable that will hold the result, “pi” is a constant representing the value of pi (approximately 3.14), and “r” is the radius of the circle. The “**” operator raises the value of “r” to the power of 2.

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## Area of Circle Program In Python

To use this formula in a program, you will need to import the `math` module, which provides mathematical functions, including the value of pi. Here’s an example of how you could use this formula to calculate the area of a circle with a radius of 5:

``````import math

def area_of_circle(r):
area = math.pi * r**2
return area

``````

## Output

78.53981633974483

This code would output the area of the circle with a radius of 5.

## Conclusion

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