Circle Class
Write a Circle class that has the following member variables
:
• radius : a double
• pi : a double initialized with the value 3.14159
The class should have the following member functions:
• Default Constructor. A default constructor that sets radius to 0.0.
• Constructor. Accepts the radius of the circle as an argument.
• setRadius. A mutator function for the radius variable.
• getRadius. An accessor function for the radius variable.
• getArea. Returns the area of the circle, which is calculated as area = pi * radius * radius
• getDiameter. Returns the diameter of the 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.
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