Adding key words Try, Catch and Finally to my Code

I need to include the key words Try, catch, and Finally. The code must show the correct answer or if there is an error the code must show an error code. I am not sure where to add the key words to make this function correctly.

Module Module1

    Sub Main()
        Dim side_of_cube, volume_ofcube As Double
        Console.Write("Enter value of side of cube: ")
        side_of_cube = Double.Parse(Console.ReadLine())
        volume_ofcube = side_of_cube * side_of_cube * side_of_cube
        Console.WriteLine("Value of volume of cube: " & volume_ofcube)
        Console.WriteLine()
        Shell("cmd /c pause", AppWinStyle.NormalFocus, True)
    End Sub

End Module

My guess is:
Sub Main()
        Dim side_of_cube, volume_ofcube As Double
        Console.Write("Enter value of side of cube: ")
        side_of_cube = Double.Parse(Console.ReadLine())
        Try
        volume_ofcube = side_of_cube * side_of_cube * side_of_cube
        Catch volume_ofcube
        Console.WriteLine("Value of volume of cube: " & volume_ofcube)
        Finally
        Console.WriteLine()
        Shell("cmd /c pause", AppWinStyle.NormalFocus, True)
    End Sub

End Module