Create a Circle class with the class implementation in a file named Circle.cpp and the class

declar$$tion in a file named Circle h $($or Circle hpp$)$ with

private data member for a type double parameter: 'radius'

a default constructor which has no parameters

a parametrized constructor which takes in a single double parameter for 'radius'

accessor and mutator for 'radius' named getRadius$(...)$ and setRadius$(...)$

member functions to return doubles for calculated parameters: area$(),$

diameter$()$ and circumference$()$I

a member function dispCircle$()$ to display the values for a circle object

PI should be assumed to be exactly $3\mathrm{.}141592.$ You may define this as a static

const double at the class scope, as a const double inside any method that uses it$,$ or

as a literal in the expression in which it's used.

A triangle is a closed shape bound within three lines. For an acute angled triangle, the base

and the height of the triangle are the important parameters, as seen in the following figure.

Area inside the triangle can be calculated using the formula:

$\frac{1}{2}$ base $$ height$$

Create a Triangle class with the class implementation in a file named Triangle.cpp and the

class declaration in a file named Triangle.h $($or Triangle.hpp$)$ with

private data members for double parameters: 'base', 'height'

a default constructor which has no parameters

a parametrized constructor which takes in a double parameter for 'base' followed

by a double parameter for 'height'

accessors and mutators for 'base' named getBase$($ dots $)$ and setBase$(...),$ and 'height'

named getHeight$(...)$ and setHeight$(...)$

member function to return a double for calculated parameter: area$()$

a member function dispTriangle$()$ to display the values for a triangle object

Create a Rectangle class with the class implementation in a file named Rectangle.cpp and

the class declaration in a file named Rectangle.h $($or Rectangle.hpp$)$ with

private data members for double parameters: 'length', 'width'

a default constructor which has no parameters

a parametrized constructor which takes in a double parameter for 'length' followed

by a double parameter for 'width'

accessors and mutators for 'length' named getLength $(-)$ and setL ength $(),$ and

'width' named getWidth$(...)$ and setWidth $(*.$