Lab 3

Modify Lab 2 to repeat until the user selects a menu option to exit.

Write a Pascal program to display a menu and request from the user their choice.

If they enter an 'A' then request from the user the radius for a circle. The program
should calculate and print the circumference and the area of the circle. Echo print the
radius.

If they enter a 'B' then request from the user the two sides of a rectangle.  The program
should calculate and print the perimeter and the area of the rectangle.  Echo print the
two sides.


SAMPLE:

A - Calculate the circumference and area of a circle
B - Calculate the perimeter and area of a rectangle
C - Exit

Enter your choice: