Objective

Calculate the area of a circle from a radius entered by the user.

Use math.pi from Activity 1.9 rather than typing out 3.14159 — that is exactly what the math module is for.

Skills to Practice

• Prompting a user for input
• Saving user input to variables
• Converting input to the correct data type
• Performing arithmetic calculations
• Formatting custom output using variables
• Using a constant from the math module

Tasks

• Create a new Python program named cc-area-of-a-circle.
• Prompt the user to enter the radius of the circle.
• Calculate the area. Formula: Area = π × radius²
• Optionally, round the answer to two decimal places.
• Display the calculated area in a clear, formatted way.

Sample Output

--- Circle Area Calculator ---
Enter the radius of the circle: 5 [Enter]
The area of the circle is 78.54