Ok! I need a program using the switch and touuper/tolower getting the Area & volume of each of these:cone , circle, sphere,cylinder. Which when I bring up cone A It ask for area and when I ask foe cone B I get volume and so on. Then second program adding a menu to it.
first you need to get the mathametical formulas for those. toupper() and tolower() has nothing to do with that. Once you know that you can start writing the program. Nobody here is going to do that work for you, so post some code and ask all the questions you need about the program YOU write.