Suppose you have the following function prototypes in your program:

int menu()

double rectanglearea(double x, double y)

double circlearea(double r)

Then a write a program in which menu() function should ask the user choices with options 1, 2, and -1 inside a loop for which the sentinel value is -1.

After you get the choice from the user, your program should

--ask for length and width, call rectanglearea function, and print the area if the choice is 1,

--ask for the radius, call circlearea function, and print the area if the choice is 2,

--print that you're exiting and exit from the loop if the choice is -1,

--ask for a valid choice and should NOT exit from the loop if the choice is other than 1, 2, and -1.

Hint:

area of rectangle: length*width

area of circle: 3.14*r*r

--I recommend testing your functions first to make sure they are working properly. Then you can start working on your loop.

RUBRIC:

--each function is worth 4 points which makes 12.

--a working loop with appropriate if statements: 8 points.

Please answer whatever u have within 5 mins