In this exercise, you modify the patio area program shown in Figure 15-7 in the chapter. If necessary, create a new project named ModifyThis11 Project and save it in the Cpp8\Chap15 folder. Enter the C++ instructions from the figure into a source file named ModifyThis11.cpp. Change the filename in the first comment. Enter the instructions shown in Figure 15-11 in the chapter in a header file named ModifyThis11 Square.h. Change the filename in the first comment. Modify the patio area program so it uses the parameterized calcArea method. Test the program appropriately.

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1 //Modified Patio Area.cpp 2 //Displays the area of a square patio 3 //Created/revised by on 4 5 #include 6 #include "Square.h" 7 using namespace std; 8 9 int main() 10 { //instantiate a Square object Square patio; //declare variables double sideMeasurement = 0.0; double area = 0.0; 11 12 13 14 15 16 //get side measurement cout <« "Side measurement (feet): "; cin >> sideMeasurement; //assign side measurement to Square object patio.setSide(sideMeasurement); 17 18 19 20 21 22 //calculate and display area patio.calcArea); 23 24 area = 25 cout << "The area of a square patio <« "with a side measurement of " << endl « patio.getSide() « « area <« " square feet." « endl; 26 27 28 feet is 29 30 return 0; 31 } //end of main function Figure 15-7 Modified patio area program