Write a C# console application

that will display a menu:

$1)$Square

$2)$Rectangle

$3)$ triangle

Then wait for user input if they input a value other than $12$ or $3$ display a error message.

If they do enter a $12$ or $3$ display the shape using Console.writeLine$()$ show the shape using $*$

I suggest writing the shapes in notepad first.

Use loops and counters

for$($int line $=1$; line $<10$; line$++)$

$\{$

string output $=""$;

for$($int index $=1$; index$<10$; index$++)$

$\{$

output $+="*"$;

$\}$

System.Console.WriteLine$($output$)$;

$\}$To do the shapes I suggest a nested loop