I'm using visual studio C#

make Console program using what we've learned in class and in the textbook, chapters 1-8 (exclude chapter 3), to implement (code) an interactive program that: 1. Displays a menu 2. Accepts a menu selection from the user 3. Calculates results of formulas or performs actions per figure 1. below. 4. Pauses so the user can read the results of the formula selected 5. Accepts keypress from user to go back to menu and wait for next user selection Note: if the user makes an invalid selection ignore it and display a "helpful" message Your menu program should display a menu that looks similar to this

1. Calculate rectangular area (length )4: Width) 2. Calculate triangular area. (1/2. base x height) 3. Calculate circumference of a. circle given radius (2 X PI x r) 4. Print ordinal starting position of "Mink" in the tagline "Think Mink!\" 5. Convert keyboard input to all uppercase 6. Convert keyboard input to all lowercase 7. Exit Brett's Simple Formula Program Select Option: _