In this exercise, you complete a program that uses the Square class shown in Figure 15-7...

In this exercise, you complete a program that uses the Square class shown in Figure 15-7 in the chapter. Follow the instructions for starting C++ and viewing the Introductory12.cpp file, which is contained in either the Cpp7\Chap15\Introductory12 Project folder or the Cpp7\Chap15 folder. (Depending on your C++ development tool, you may need to open this exercise’s project/solution file first.) If necessary, delete the two forward slashes that appear before the system("pause"); statement and then save the file. Enter the Square class definition from Figure 15-7 in a header file named Introductory12 Square.h. Change the filename in the first comment. Next, complete the Introductory12.cpp file by entering the appropriate instructions. Use the comments as a guide. Save, run, and test the program.

REFERENCE: Figure 15-7