In Class Exercise/HW 10a: Write a program that calculates the volume of a rectangular column. Volume = length x width x height Program Criteria: Use at least one comment line to document your first program. Have the user enter their data for length, width and height on the excel spreadsheet. Use a Call statement to pass the length, width and height data from the Main Sub to another Sub Procedure. Perform the calculation in the Sub procedure. Display the results in a Message Box on the screen. In Class Exercise/HW 10a: Write a program that calculates the volume of a rectangular column. Volume = length' width" height Program Criteria: 1.Use at least one comment line to document your first program. 2Have the user enter their data for length, width and height on the excel spreadsheet. 3.Use a Call statement to pass the length, width and height data from the Main Sub to another Sub Procedure. 4. Perform the calculation in the Sub procedure. 5. Display the results in a Message Box on the screen. In-Class Exercise/HW #10b: write the Simple Addition program (see page 2 of these notes) using a USER DEFINED function instead to add the 2 variables a and b, assigning the answer to variable c. Also show the answer in a message box