In the main file, you should dynamically create the instances of the Rectangles and Circles, storing pointers to the objects into the vector. When you test it out in main, loop through the vector, and print out the type of class (using the whatAmI) as well as the area, using getArea. You should get the correct values, based on the type of object at each position within the area

Qr or codes let any piece of print host a link to online information.

Complete the sentence based on your knowledge of the professional difficulties faced by music artists. digital technology allows audiences to see free live telecasts of music or dance performances through

1)consider the following code snippet: #ifndef book_h#define book_hconst double max_cost = 1000.0; class book{public: book(); book(double new_cost); void set_cost(double new_cost); double get_cost() const; private: double cost; }; double calculate_terms(book bk); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_cost should be removed since header files should not contain constants.c)the definition of book should be removed since header files should not contain class definitions.d)the body of the calculate_terms function should be added to the header file.