Take the above toybox example and make the following changes:

Add Box and Triangle as derived classes $-$ similar to what you did in the last module.

Add a new virtual function for number of sides and add that to all of the derived classes: Make a rule of how that would work for circle.

Show examples of all of these derived classes in the main program.

Explain at the end of your code how the computer knows which type of object is being taken out of the toybox.

Remember to put comments in your program along with name$/$date$/$e$-$mail and a program overview at the top of the program.