In this exercise, you modify the patio area program shown in Figure 15-8 in the chapter....

In this exercise, you modify the patio area program shown in Figure 15-8 in the chapter. If necessary, create a new project named ModifyThis11 Project and save it in the Cpp7\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 15-13 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. Save, run, and test the program.

REFERENCE: Figure 15-13

FIGURE 15-8