RECTANGLE
R E C T A N G L E
+---------------------------+-------+----+
| Enter Length | M | A |
| Enter Width | M | B |
+---------------------------+-------+----+
| Perimeter calculation | M | A' |
| Area calculation | M2 | B' |
+---------------------------+-------+----+
| Return to the Main Menu | E |
+-----------------------------------+----+
_ _
_ __ ___ ___ | |_ __ _ _ __ __ _ | | ___
| '__|/ _ \ / __|| __|/ _` || '_ \ / _` || |/ _ \
| | | __/| (__ | |_| (_| || | | | (_| || | __/
|_| \___| \___| \__|\__,_||_| |_|\__, ||_|\___|
|___/