Question: need help with a C++ program that will use a class called Circle that has the following member variables: - radius: a float - pi:

need help with a C++ program that will use a class called Circle that has the following member variables:

- radius: a float

- pi: a float initialized with the value 3.14159

The class should have the following member functions:

- constructor - sets the radius value = 0.0.

- setRadius - a mutator function for the radius variable.

- getRadius - an accessor function for the radius variable.

- getArea - returns the area of a circle, which is calculated as:

area = pi * radius * radius

- getDiameter - returns the diameter of a circle, which is calculated as:

diameter = radius * 2

- getCircumference - returns the circumference of the circle, which is calculated as

circumference = 2 * pi * radius

Write a program that demonstrates the Circle class by asking the user for the circle's radius, creating a Circle object, and then reporting the circle's area, diameter, and circumference with 2 decimal places each.

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