cout $<<"------------------------------$

$"$;

cout $<<$ "Welcome to a geometry calculator!

$"$;

cout $<<$ "Insert $\text{'}$R$\text{'}$ for Rectangle.

$"$;

cout $<<$ "Insert $\text{'}$S$\text{'}$ for Square.

$"$;

cout $<<$ "Insert $\text{'}$T$\text{'}$ for Triangle.

$"$;

cout $<<$ "Insert $\text{'}$C$\text{'}$ for Circle.

$"$;

cout $<<"$

Insert $\text{'}$Y$\text{'}$ to continue.

$"$;

cout $<<$ "Insert $\text{'}$N$\text{'}$ to finish the program.

$"$;

cout $<<"------------------------------$

$"$;

cout $<<$ "Please select your choice

$"$;

cout $<<$ "Input: $"$;

cin $>>$ input;

double value$1=0$;

double value$2=0$;

double area $=0$