#Training The Three Squares
Write a program that meets the following requirements. It may be a Console app, or a WinForm app, or maybe something else?
The total area of all three squares together (i.e. area1 + area2 + area3) is displayed to the user.
method
that can calculate the area of a square. The method has a parameter (representing the length of a side of the square) and returns (return
) the area of the square.