C$++$ Program Specifications

Create a menu$-$driven program that calculates and

displays the areas of two different objects: squares and

circles.

The menu should have the following three choices:

$1--$ square

$2--$ circle $3$ quit

if the user selects choice $1,$ the program shall ask

the user for the side length of the square $($can be a

decimal number$)$ and shall calculate the area of the

square and output it as shown in the sample run to

the right.

if the user selects choice $2,$ the program shall ask

the user for the radius of the circle $($can be a

decimal number$)$ and shall calculate the area of the

circle and output it as shown in the sample run to

the right. Use $3\mathrm{.}14$ for the value of pi$.$

If the user selects choice $3,$ the program shall quit

after outputting an additional newline.

if the user enters a value for choice that is not in

the range $[1,3]$ then the program shall output an

error message as shown in the sample run to the

right and will then re$-$display the menu.