Classes and Inheritance

Create the following classes use the tree diagram to determine the Inheritance for the classes

here are some specifications for the classes you will create


Shape 
functions:
double Area() , returns 0
double Volume() , returns 0
string ToString() , returns a string matching the example
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Line 
non public data member type double , the length
override ToString function
void SetLength( double )  
if the value passed in is less than 0 set length to 0
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Square
override ToString function
override Area function  
area is length * width
but we dont have a width ( it is the same as length in a square )
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Cube
override ToString function
override Area function   a cube has 6 sides so call the square area function and multiply it by 6
/* you MUST call the Area fuction of the Square */

override the Volume function   
depth * area of a side volume 
depth is the same as the length in a cube 
/* you MUST call the Area fuction of the Square */
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Rectangle
non public data member type double , the width
void SetWidth( double )  
if the value passed in is less than 0 set width to 0

override ToString function
override Area function   area is length * width 
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Rectangular_Prism
non public data member type double depth
void SetDepth( double )  
if the value passed in is less than 0 set depth to 0

override ToString function
override Area function   
		2 * (length * width)  + 2 * (length * depth) + 2 * (width * depth)
override the Volume function    
		volume =  depth * area of rectangle  ( use Rectangle::Area() )
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none of your constructors shold allow data members to be set to values less than 0, Do not replicate logic to prevent this

Testing your classes 
if you create the classes in the order listed above the test mains should test the required classes
DO NOT change anything in the main files.
each of the mains tests the classes in the order above

put the function bodies inside the class defenition, if you wish to break the function bodies into .cpp files you will need to alter the Makefile accordingly