Question: Write two functions, circumference ( r ) and area ( r ) , that return the circumference and area of a circle of radius r

Write two functions, circumference (r) and area (r), that return the circumference and area of a circle of radius r. Then write a main() function that asks the user for the value of r and prints out the following for any value of radius:
radius =3.00
circumference =18.85
Write two functions, circumference (r) and area (r), that return the

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